Opusvsstockfish-1700
Halbzuege (90)
1.d4Opus
1. Observe Halbzug 1, Weiss am Zug. Phase: Eroeffnung. Material gleich. Legale Zuege: 20. Criticality: 0.30.
- material-counter0ms
2. Recall Position recall: 12 similar position(s) found (limit=15).
- nex_search18ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search5ms
4. Research research: opening_explorer + web_search both disabled — pure memory-only opening plan.
5. Plan Phase: opening. Seize a central pawn (e4/d4 family), develop knights before bishops, and prepare short castling by move 5-6 to convert the first-move tempo into a stable, healthy position. Build a sound classical center …
- llm.plan18478ms · $0.0327
full reasoning
Phase: opening. Seize a central pawn (e4/d4 family), develop knights before bishops, and prepare short castling by move 5-6 to convert the first-move tempo into a stable, healthy position. Build a sound classical center with rapid harmonious development and king safety, then steer toward a slow-maneuvering middlegame on a different sector than the engine calculates — exploiting its ~6-move positional horizon (opponent-pattern engine-horizon) rather than forcing tactics it computes perfectly (lesson Avoid Forcing Lines). Critical: No concrete threats at ply 1; sole risk is squandering the initiative with a non-developing or premature flank move (heuristic limited-pawn-moves, kingside-before-castle); Opponent is a 1700 engine that defends optimally — must out-plan, not out-trick (opponent-pattern engine-defense); Choose an opening that invites a quiet structure I can outmaneuver in (central-control + knights-before-bishops heuristics), avoiding sharp theory-heavy lines.
6. Candidates Candidates: d4 (Claims center, opens a quiet maneuvering structure (Queen's Pawn) where I can outplan the engine's 6-move horizon rather than face sharp e4 theory.) | e4 (Strongest central grab, frees bishop and queen, e…
- chess.js.legal_moves0ms
- llm.candidates9882ms · $0.0237
full reasoning
Candidates: d4 (Claims center, opens a quiet maneuvering structure (Queen's Pawn) where I can outplan the engine's 6-move horizon rather than face sharp e4 theory.) | e4 (Strongest central grab, frees bishop and queen, enables fast castling; fits central-control plus knights-before-bishops development.) | c4 (English: flexible flank-central control inviting slow positional play, sidesteps heavy theory, steers toward maneuvering middlegame I prefer.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: d4 — Claims the center while opening a quiet, less-forcing maneuvering structure where a 1700 engine's ~6-move horizon hurts it most. Aligns with my plan to out-plan rather than out-calculate optimal defense.…
- llm.reflect9945ms · $0.0177
full reasoning
Final pick: d4 — Claims the center while opening a quiet, less-forcing maneuvering structure where a 1700 engine's ~6-move horizon hurts it most. Aligns with my plan to out-plan rather than out-calculate optimal defense.. Rejected: e2e4, c2c4.
9. Commit Commit d4 (d2d4).
2...Nf6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: g8f6
- stockfish_uci1006ms
3.c4Opus
1. Observe Halbzug 3, Weiss am Zug. Phase: Eroeffnung. Material gleich. Legale Zuege: 28. Criticality: 0.30.
- material-counter0ms
2. Recall Position recall: 12 similar position(s) found (limit=15).
- nex_search10ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research research: opening_explorer + web_search both disabled — pure memory-only opening plan.
5. Plan Phase: opening. Play c4 to claim a broad d4+c4 center, then develop knights (Nc3/Nf3) before bishops and prepare short castling by move 6, keeping the queen home per principle 'queen late'. Build a classical two-pawn cen…
- llm.plan15858ms · $0.0457
full reasoning
Phase: opening. Play c4 to claim a broad d4+c4 center, then develop knights (Nc3/Nf3) before bishops and prepare short castling by move 6, keeping the queen home per principle 'queen late'. Build a classical two-pawn center (principle 'central control'), convert the first-move tempo into a stable Indian-defense structure, then maneuver slowly on the queenside where the engine's ~6-move horizon ('engine horizon') is weakest rather than forcing tactics it calculates perfectly. Critical: Black's strongest reply is a hypermodern setup (...g6 King's Indian/Gruenfeld or ...e6 with ...d5/...Bb4 Nimzo-style) inviting me to overextend the center; own weakness: every extra pawn move past c4 costs a developing tempo ('limited pawn moves'), and an unsupported center can be undermined by ...c5/...e5 breaks; no concrete tactical threat at ply 3; sole risk is squandering initiative or committing bishops too early.6. Candidates Candidates: c4 (Claims the broad d4+c4 center, enters Indian-defense structure; matches plan's central-control principle and steers toward slow queenside play.) | Nf3 (Flexible developing move controlling e5, prepares ca…
- chess.js.legal_moves0ms
- llm.candidates11475ms · $0.0278
full reasoning
Candidates: c4 (Claims the broad d4+c4 center, enters Indian-defense structure; matches plan's central-control principle and steers toward slow queenside play.) | Nf3 (Flexible developing move controlling e5, prepares castling without committing the center; keeps options against ...g6 or ...e6 setups.) | Nc3 (Develops knight, supports a later e4 push; fits develop-knights-first principle but slightly blocks c-pawn versus the c4 plan.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: c4 — Claims the broad d4+c4 center and enters classical Indian structures, converting the first-move tempo into a stable space advantage that steers play toward slow queenside maneuvering where the engine's s…
- llm.reflect10568ms · $0.0213
full reasoning
Final pick: c4 — Claims the broad d4+c4 center and enters classical Indian structures, converting the first-move tempo into a stable space advantage that steers play toward slow queenside maneuvering where the engine's short horizon is weakest.. Rejected: g1f3, b1c3.
9. Commit Commit c4 (c2c4).
4...g6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: g7g6
- stockfish_uci1006ms
5.e4Opus
1. Observe Halbzug 5, Weiss am Zug. Phase: Eroeffnung. Material gleich. Legale Zuege: 30. Criticality: 0.30.
- material-counter0ms
2. Recall Position recall: 12 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research research: opening_explorer + web_search both disabled — pure memory-only opening plan.
5. Plan Phase: opening. Develop Nc3 to support an e4 push, building the broad classical center (principle 'central control'), then bring out the king's knight and bishop ('knights before bishops') to enable short castling by mov…
- llm.plan13532ms · $0.0375
full reasoning
Phase: opening. Develop Nc3 to support an e4 push, building the broad classical center (principle 'central control'), then bring out the king's knight and bishop ('knights before bishops') to enable short castling by move 6-7 ('castle early'). Erect a full d4+c4+e4 pawn center against Black's hypermodern King's Indian/Gruenfeld fianchetto, then expand on the queenside where the engine's ~6-move horizon ('engine horizon') is weakest, converting space into a patient bind rather than premature tactics the engine calculates perfectly ('engine defense'). Critical: Black's fianchetto pressures e4/d4 long-diagonal — overextending the center invites ...d5 (Gruenfeld) or ...e5 (KID) breaks; must not open kingside before castling ('kingside before castle'); keep queen home until move 6-7 ('queen late') to avoid tempo loss; develop with limited pawn moves ('limited pawn moves').6. Candidates Candidates: Nc3 (Develops a piece toward the center, supports the e4 push to build the full classical d4+c4+e4 bind against Black's fianchetto.) | e4 (Erects the broad classical center immediately; principal line vs King…
- chess.js.legal_moves0ms
- llm.candidates11475ms · $0.0315
full reasoning
Candidates: Nc3 (Develops a piece toward the center, supports the e4 push to build the full classical d4+c4+e4 bind against Black's fianchetto.) | e4 (Erects the broad classical center immediately; principal line vs King's Indian, claims maximum space before Black completes the fianchetto.) | Nf3 (Knights-before-bishops development controlling e5, flexible toward early castling while keeping the c4/d4 center intact.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: e4 — Erects the full classical d4+c4+e4 center now (principle 'central control'), claiming maximum space before Black fianchettoes. Best reply 3...d6/Bg7 KID lets me expand queenside where the engine's short …
- llm.reflect14858ms · $0.0392
full reasoning
Final pick: e4 — Erects the full classical d4+c4+e4 center now (principle 'central control'), claiming maximum space before Black fianchettoes. Best reply 3...d6/Bg7 KID lets me expand queenside where the engine's short horizon is weakest.. Rejected: b1c3, g1f3.
9. Commit Commit e4 (e2e4).
6...Nxe4stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: f6e4
- stockfish_uci1005ms
7.Nc3Opus
1. Observe Halbzug 7, Weiss am Zug. Phase: Eroeffnung. Schwarz +1 Punkte. Legale Zuege: 35. Criticality: 0.40.
- material-counter0ms
2. Recall Position recall: 12 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research research: opening_explorer + web_search both disabled — pure memory-only opening plan.
5. Plan Phase: opening. Challenge and evict the loose Black knight on e4 with a developing move (so the gain-of-tempo dovetails with development), keep the broad c4+d4 center intact, and finish kingside development to castle wit…
- llm.plan18410ms · $0.0631
full reasoning
Phase: opening. Challenge and evict the loose Black knight on e4 with a developing move (so the gain-of-tempo dovetails with development), keep the broad c4+d4 center intact, and finish kingside development to castle within two moves. Convert the classical c4+d4 space advantage into a lasting bind against Black's hypermodern fianchetto, then expand slowly on the queenside where the engine's ~6-move horizon ('engine horizon') is weakest, rather than inviting tactics it calculates perfectly ('engine defense'). Critical: Black's knight on e4 is unsupported (no ...d5/...f5) — evicting it must come with tempo, not a clumsy f3 that opens my unrenamed king ('kingside before castle'); must not let the knight grab a hook via ...Qa5+ or ...Bxd4 tactics before I challenge it; keep d4 defended while developing per 'central control' and 'knights before bishops'; delay queen sortie unless it both hits e4 and develops ('queen late').6. Candidates Candidates: Nc3 (Develops and challenges the unsupported e4-knight with tempo; per 'knights before bishops' and 'central control', forces a trade or retreat.) | Qd3 (Attacks e4 while supporting the c4+d4 center; evicts t…
- chess.js.legal_moves0ms
- llm.candidates14969ms · $0.0544
full reasoning
Candidates: Nc3 (Develops and challenges the unsupported e4-knight with tempo; per 'knights before bishops' and 'central control', forces a trade or retreat.) | Qd3 (Attacks e4 while supporting the c4+d4 center; evicts the knight with tempo, though queen sortie slightly early per 'queen late'.) | Nd2 (Develops and hits e4, keeps d4 defended; trade or retreat follows, but temporarily blocks the c1-bishop.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Nc3 — Develops a piece toward the center and attacks the unsupported e4-knight with tempo. After ...Nxc3 bxc3 my c4+d4 center is reinforced; if it retreats I gain free development toward castling.. Rejected: …
- llm.reflect14057ms · $0.0284
full reasoning
Final pick: Nc3 — Develops a piece toward the center and attacks the unsupported e4-knight with tempo. After ...Nxc3 bxc3 my c4+d4 center is reinforced; if it retreats I gain free development toward castling.. Rejected: d1d3, b1d2.
9. Commit Commit Nc3 (b1c3).
8...d5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: d7d5
- stockfish_uci1006ms
9.cxd5Opus
1. Observe Halbzug 9, Weiss am Zug. Phase: Eroeffnung. Schwarz +1 Punkte. Legale Zuege: 39. Criticality: 0.40.
- material-counter0ms
2. Recall Position recall: 12 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research research: opening_explorer + web_search both disabled — pure memory-only opening plan.
5. Plan Phase: opening. Break the e4-knight's only support by capturing on d5; whatever Black recaptures with, the loose knight then falls to Nxe4 or must flee, restoring material balance while my c4+d4 center morphs into a stro…
- llm.plan30325ms · $0.1128
full reasoning
Phase: opening. Break the e4-knight's only support by capturing on d5; whatever Black recaptures with, the loose knight then falls to Nxe4 or must flee, restoring material balance while my c4+d4 center morphs into a strong d5/central clamp. Then finish development and castle. Regain the pawn by exploiting the undefended e4-knight after removing its d5-pawn guard, convert the resulting central space (Queen's Gambit-style cxd5 motif) into a lasting bind against Black's fianchetto setup, then expand patiently on the queenside beyond the engine's ~6-move horizon. Critical: e4-knight is defended ONLY by the d5-pawn — removing that guard wins it or forces a favorable trade; must recheck that no zwischenzug (...Nxc3, ...Qxd5 with tempo) flips the material count back; engine will find the objectively best recapture every move (engine defense) — the plan must work against the best line, not a hoped-for slip; keep king safety in view: do not open the center recklessly while my own king is still on e1 (castle within two moves).
6. Candidates Candidates: cxd5 (Removes the d5-pawn, the e4-knight's only defender; after ...Qxd5 Nxe4 regains material with a strong center.) | Nxe4 (Immediate trade: Nxe4 dxe4 liquidates the intruder, then cxd5 or central play recou…
- chess.js.legal_moves0ms
- llm.candidates12993ms · $0.0430
full reasoning
Candidates: cxd5 (Removes the d5-pawn, the e4-knight's only defender; after ...Qxd5 Nxe4 regains material with a strong center.) | Nxe4 (Immediate trade: Nxe4 dxe4 liquidates the intruder, then cxd5 or central play recoups the pawn cleanly.) | Nxd5 (Captures the supporting pawn directly, leaving e4-knight loose; centralizes knight but allows ...e6 challenge.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: cxd5 — Removes the d5-pawn, the e4-knight's only defender; after ...Qxd5 Nxe4 regains material with a strong center.. Rejected: c3e4, c3d5. [LLM note: Claude CLI subprocess timed out after 60000ms]
9. Commit Commit cxd5 (c4d5).
10...Nxc3stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: e4c3
- stockfish_uci1009ms
11.bxc3Opus
1. Observe Halbzug 11, Weiss am Zug. Phase: Eroeffnung. Schwarz +3 Punkte. Legale Zuege: 36. Criticality: 0.25.
- material-counter0ms
2. Recall Position recall: 12 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research research: opening_explorer + web_search both disabled — pure memory-only opening plan.
5. Plan Phase: opening. Recapture the intruding knight on c3 with the b-pawn to instantly restore material equality; the resulting doubled c-pawns are a small price for a broad d4/d5 center and a half-open b-file pointing at b7.…
- llm.plan29725ms · $0.1260
full reasoning
Phase: opening. Recapture the intruding knight on c3 with the b-pawn to instantly restore material equality; the resulting doubled c-pawns are a small price for a broad d4/d5 center and a half-open b-file pointing at b7. Convert the central pawn duo and open b-file into a lasting space clamp against Black's fianchetto setup, finish development (Nf3, Bc1-f4/g5, Bf1, O-O) and probe the queenside where the engine's ~6-move horizon is weakest. Critical: the c3-knight currently attacks my queen on d1 — capturing it is essentially forced and also the best move; after recapture my doubled c-pawns and slightly exposed king must be offset by quick castling; Black will try to blockade d5 and trade into an endgame targeting my weak c-pawns, per the IQP/QG memory and engine rational-defense pattern — I must keep pieces on and press before he consolidates.
6. Candidates Candidates: bxc3 (Forced recapture restoring material equality; doubled c-pawns buy a broad d4/d5 center and half-open b-file aimed at b7.) | Qa4+ (Zwischenzug check; after a block like Bd7 I play Qxc3 recovering the kni…
- chess.js.legal_moves0ms
- llm.candidates16866ms · $0.0490
full reasoning
Candidates: bxc3 (Forced recapture restoring material equality; doubled c-pawns buy a broad d4/d5 center and half-open b-file aimed at b7.) | Qa4+ (Zwischenzug check; after a block like Bd7 I play Qxc3 recovering the knight without doubling pawns, but ...b5 complicates.) | Bb5+ (Developing check; if c6 then bxc3 with tempo, but Black can interpose cleanly so it gains less than the queen check.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: bxc3 — Immediately restores material equality and builds a broad d4/d5 pawn duo with a half-open b-file pressing b7; doubled c-pawns are a minor cost offset by space and quick castling.. Rejected: d1a4, f1b5.
- llm.reflect20897ms · $0.0642
9. Commit Commit bxc3 (b2c3).
12...Bg7stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: f8g7
- stockfish_uci1005ms
13.Nf3Opus
1. Observe Halbzug 13, Weiss am Zug. Phase: Eroeffnung. Material gleich. Legale Zuege: 37. Criticality: 0.40.
- material-counter0ms
2. Recall Position recall: 12 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research research: opening_explorer + web_search both disabled — pure memory-only opening plan.
5. Plan Phase: opening. Finish development behind the broad d4/d5 wedge — Ng1-f3 and Bf1-e2/c4, then castle short — keeping the center intact while preparing to meet Black's eventual ...c6 or ...e6 break with pieces already mobi…
- llm.plan30890ms · $0.1197
full reasoning
Phase: opening. Finish development behind the broad d4/d5 wedge — Ng1-f3 and Bf1-e2/c4, then castle short — keeping the center intact while preparing to meet Black's eventual ...c6 or ...e6 break with pieces already mobilized. Convert the d4/d5 space clamp and the half-open b-file into a lasting queenside squeeze against Black's fianchetto setup, maneuvering slowly where the engine's ~6-move horizon is weakest. Critical: Black's freeing breaks ...c6 and ...e6 against the d5 spearhead; my own lagging development and uncastled king (Bc1, Bf1, Ng1, both rooks home); the long-diagonal pressure from Bg7 on d4/c3 once the center is challenged.
6. Candidates Candidates: Nf3 (Core development move: knight defends d4, prepares O-O. Heuristic 'develop-before-attack' and 'castle-short' both apply directly.) | Bc4 (Activates bishop on the a2-g8 diagonal eyeing the d5-spearhead su…
- chess.js.legal_moves0ms
- llm.candidates29901ms · $0.0557
full reasoning
Candidates: Nf3 (Core development move: knight defends d4, prepares O-O. Heuristic 'develop-before-attack' and 'castle-short' both apply directly.) | Bc4 (Activates bishop on the a2-g8 diagonal eyeing the d5-spearhead support and Black's king; pairs with Nf3 toward short castling.) | c4 (Reinforces the d5 wedge, builds a Benoni-style space clamp per the queenside-squeeze plan; but slightly delays piece development.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Nf3 — Develops the last minor piece blocking castling, reinforces the d4 base of my pawn wedge against Bg7's long-diagonal pressure, and enables O-O next move to resolve my lagging development and uncastled k…
- llm.reflect12055ms · $0.0299
full reasoning
Final pick: Nf3 — Develops the last minor piece blocking castling, reinforces the d4 base of my pawn wedge against Bg7's long-diagonal pressure, and enables O-O next move to resolve my lagging development and uncastled king.. Rejected: f1c4, c3c4.
9. Commit Commit Nf3 (g1f3).
14...Nd7stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: b8d7
- stockfish_uci1023ms
15.Be3Opus
1. Observe Halbzug 15, Weiss am Zug. Phase: Eroeffnung. Material gleich. Legale Zuege: 35. Criticality: 0.40.
- material-counter0ms
2. Recall Position recall: 12 similar position(s) found (limit=15).
- nex_search10ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research research: opening_explorer + web_search both disabled — pure memory-only opening plan.
5. Plan Phase: opening. Develop Bf1-e2 (or d3) and Bc1-f4/e3, then castle short within 2-3 moves, keeping the d4/d5 wedge intact while bracing for Black's ...c6 or ...e6 freeing break. Convert the d4/d5 space clamp into a lastin…
- llm.plan20340ms · $0.0679
full reasoning
Phase: opening. Develop Bf1-e2 (or d3) and Bc1-f4/e3, then castle short within 2-3 moves, keeping the d4/d5 wedge intact while bracing for Black's ...c6 or ...e6 freeing break. Convert the d4/d5 space clamp into a lasting queenside and central squeeze, finishing development first so that when Black strikes with ...c6/...e6 my pieces meet the open lines from a fully mobilized, castled position. Critical: Black's freeing breaks ...c6 and ...e6 against the d5 spearhead; my still-uncastled king with Bc1, Bf1 and both rooks undeveloped; Bg7 long-diagonal pressure on d4/c3 once the center opens; tempo loss if I commit the c1-bishop poorly before deciding f4 vs e3.
6. Candidates Candidates: Bf4 (Develops c1-bishop actively outside the pawn chain, eyes d6/e5, keeps the d4/d5 wedge intact before castling.) | Be2 (Solid developing move clearing the way for O-O next, exactly the castle-short-within-…
- chess.js.legal_moves0ms
- llm.candidates13429ms · $0.0469
full reasoning
Candidates: Bf4 (Develops c1-bishop actively outside the pawn chain, eyes d6/e5, keeps the d4/d5 wedge intact before castling.) | Be2 (Solid developing move clearing the way for O-O next, exactly the castle-short-within-2-3-moves plan against ...c6/...e6 breaks.) | Be3 (Reinforces the d4 pawn that Bg7 pressures, develops the bishop solidly while preparing kingside castling.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Be3 — Directly reinforces d4, the exact square Bg7 pressures, while developing the last minor piece and clearing for O-O. Keeps the d4/d5 wedge rock-solid before Black's ...c6/...e6 break.. Rejected: c1f4, f1…
- llm.reflect16270ms · $0.0532
full reasoning
Final pick: Be3 — Directly reinforces d4, the exact square Bg7 pressures, while developing the last minor piece and clearing for O-O. Keeps the d4/d5 wedge rock-solid before Black's ...c6/...e6 break.. Rejected: c1f4, f1e2.
9. Commit Commit Be3 (c1e3).
16...Nf6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: d7f6
- stockfish_uci1004ms
17.Be2Opus
1. Observe Halbzug 17, Weiss am Zug. Phase: Mittelspiel. Material gleich. Legale Zuege: 36. Criticality: 0.25.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Finish development with Bf1-e2 and 0-0 within two moves, keeping the d4/d5 wedge intact, so that when Black plays ...c6 or ...e6 my king is safe and rooks can contest the central files (open-file rooks…
- llm.plan22263ms · $0.0761
full reasoning
Phase: middlegame. Finish development with Bf1-e2 and 0-0 within two moves, keeping the d4/d5 wedge intact, so that when Black plays ...c6 or ...e6 my king is safe and rooks can contest the central files (open-file rooks heuristic, prophylaxis heuristic). Convert the d4/d5 space clamp into a durable central/queenside squeeze by meeting Black's freeing break with c3-c4, anchoring a knight or rook on the strong d-file while exploiting that this 1700 engine looks short on slow positional plans (opponent horizon pattern). Critical: Black's freeing breaks ...c6 and ...e6 hitting the undefended d5 spearhead; my still-uncastled king with Bf1 and both rooks undeveloped; Bg7 long-diagonal pressure on d4/c3 once the center opens; engine defends optimally — squeeze patiently, no hoped-for blunders.
6. Candidates Candidates: Be2 (Completes development per plan, clears f1 to castle next move, keeps d4/d5 wedge and king safe (prophylaxis, finish-development heuristic).) | c4 (Reinforces the d5 spearhead and stakes a queenside/centr…
- chess.js.legal_moves0ms
- llm.candidates11427ms · $0.0351
full reasoning
Candidates: Be2 (Completes development per plan, clears f1 to castle next move, keeps d4/d5 wedge and king safe (prophylaxis, finish-development heuristic).) | c4 (Reinforces the d5 spearhead and stakes a queenside/central space clamp, the durable squeeze the plan targets against a slow-plan engine.) | Bd3 (Active diagonal aiming at kingside, supports central control and enables castling; alternative developing square if e2 less desired.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Be2 — Completes development and clears f1 for 0-0 next move, keeping king safe before Black's ...c6/...e6 breaks hit the d5 wedge. Flexible bishop retains c4 push for later squeeze.. Rejected: c3c4, f1d3.
- llm.reflect12005ms · $0.0304
9. Commit Commit Be2 (f1e2).
18...O-Ostockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: e8g8
- stockfish_uci1023ms
19.O-OOpus
1. Observe Halbzug 19, Weiss am Zug. Phase: Mittelspiel. Material gleich. Legale Zuege: 37. Criticality: 0.25.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search10ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search5ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Castle kingside next move to remove my king from the center, keep the d4/d5 wedge intact, and prepare c3-c4 so the d5 spearhead is rock-solid before Black organizes ...c6 or ...e6. Convert the d4/d5 ce…
- llm.plan20281ms · $0.0660
full reasoning
Phase: middlegame. Castle kingside next move to remove my king from the center, keep the d4/d5 wedge intact, and prepare c3-c4 so the d5 spearhead is rock-solid before Black organizes ...c6 or ...e6. Convert the d4/d5 central space clamp into a lasting queenside/central squeeze, planting a piece on the e5/d-file outpost and doubling rooks on whichever file Black opens, exploiting that this engine misses slow plans beyond its horizon. Critical: Black's freeing breaks ...c6 and ...e6 both strike the d5 pawn — I must over-protect d5 (c4) before it becomes loose (prophylaxis heuristic); my uncastled king: any central opening favors Black until I have 0-0 (king-safety); after ...c6 dxc6 the half-open d-file and weak d6/c6 squares become the battleground (open-file rooks + weak-squares-outpost heuristics); engine will defend the d5-break tactically and accurately (engine-defense pattern), so I squeeze on the queenside where its horizon is shortest (engine-horizon pattern), not via a premature kingside lunge.
6. Candidates Candidates: O-O (King-safety first: removes uncastled king from center before ...c6/...e6 opens lines, exactly as the plan demands prophylaxis.) | c4 (Over-protects the d5 spearhead before ...c6/...e6 strike it, cementin…
- chess.js.legal_moves0ms
- llm.candidates11429ms · $0.0302
full reasoning
Candidates: O-O (King-safety first: removes uncastled king from center before ...c6/...e6 opens lines, exactly as the plan demands prophylaxis.) | c4 (Over-protects the d5 spearhead before ...c6/...e6 strike it, cementing the central clamp for the queenside squeeze.) | Ne5 (Plants a knight on the e5 outpost supported by d4, dominating central squares and pressuring Black's horizon.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: O-O — King safety is the position's defining issue: my king sits in the center while ...c6/...e6 breaks loom against d5. Castling first means any central opening no longer favors Black, then c4 can over-prote…
- llm.reflect9868ms · $0.0201
full reasoning
Final pick: O-O — King safety is the position's defining issue: my king sits in the center while ...c6/...e6 breaks loom against d5. Castling first means any central opening no longer favors Black, then c4 can over-protect d5 safely.. Rejected: c3c4, f3e5.
9. Commit Commit O-O (e1g1).
20...b5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: b7b5
- stockfish_uci1023ms
21.Bxb5Opus
1. Observe Halbzug 21, Weiss am Zug. Phase: Mittelspiel. Material gleich. Legale Zuege: 33. Criticality: 0.15.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search12ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Strike with c3-c4 to challenge Black's loose b5 pawn and cement the d5 wedge, opening the c-file or winning queenside space; reroute the passive e2-bishop and contest the soon-to-open c-file with a roo…
- llm.plan18711ms · $0.0660
full reasoning
Phase: middlegame. Strike with c3-c4 to challenge Black's loose b5 pawn and cement the d5 wedge, opening the c-file or winning queenside space; reroute the passive e2-bishop and contest the soon-to-open c-file with a rook. Convert the d4/d5 central clamp plus queenside space into a lasting bind, fixing Black's b5/c7 weaknesses and occupying the c-file or an e5/c5 outpost before the engine's short horizon lets it organize ...c6/...e6 counter-breaks. Critical: Black's freeing breaks ...c6 and ...e6 both hit d5 — must keep d5 over-protected (prophylaxis heuristic); Black's b5 is loose and a target after c4; watch ...b4 counter-jab on c3; my e2-bishop is passive (bad-bishop risk) and needs an active diagonal; fianchettoed g7-bishop pressures the long diagonal once d5 ever falls — d-pawns must not become loose.
6. Candidates Candidates: Bxb5 (Activates the passive bad bishop and wins the loose b5 pawn outright; b5 is undefended by pawns, directly cashing the target the plan named.) | c4 (Thematic break: challenges b5, over-protects the d5 we…
- chess.js.legal_moves0ms
- llm.candidates15799ms · $0.0530
full reasoning
Candidates: Bxb5 (Activates the passive bad bishop and wins the loose b5 pawn outright; b5 is undefended by pawns, directly cashing the target the plan named.) | c4 (Thematic break: challenges b5, over-protects the d5 wedge and opens the c-file for my rook, fixing Black's queenside weaknesses.) | Ne5 (Centralizes the knight on the e5 outpost supported by d4, eyeing c6/d7 and reinforcing the central clamp before Black plays ...c6/...e6.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Bxb5 — b5 is pawn-undefended, so Bxb5 wins a clean pawn while activating the passive bad bishop onto an active diagonal. After ...a6 Be2 or ...Qa5 Be2, White keeps the extra pawn plus the d4/d5 clamp.. Reject…
- llm.reflect14413ms · $0.0457
full reasoning
Final pick: Bxb5 — b5 is pawn-undefended, so Bxb5 wins a clean pawn while activating the passive bad bishop onto an active diagonal. After ...a6 Be2 or ...Qa5 Be2, White keeps the extra pawn plus the d4/d5 clamp.. Rejected: c3c4, f3e5.
9. Commit Commit Bxb5 (e2b5).
22...Ng4stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: f6g4
- stockfish_uci1026ms
23.h3Opus
1. Observe Halbzug 23, Weiss am Zug. Phase: Mittelspiel. Weiss +1 Punkte. Legale Zuege: 38. Criticality: 0.25.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search10ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search5ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Repel the g4-knight intrusion that pins down my dark-squared bishop, retain the bishop pair, and keep the d5 wedge intact while clarifying the Bb5 tension before Black plays ...a6 or ...c6. Convert the…
- llm.plan20773ms · $0.0780
full reasoning
Phase: middlegame. Repel the g4-knight intrusion that pins down my dark-squared bishop, retain the bishop pair, and keep the d5 wedge intact while clarifying the Bb5 tension before Black plays ...a6 or ...c6. Convert the d4/d5 central clamp and queenside space into a lasting bind, neutralizing Black's only active piece and steering toward a c5/e5 outpost or open-file pressure while the engine's short horizon prevents coordinated ...c6/...e6 counter-breaks. Critical: Black's Ng4 immediately attacks Be3 — must save the bishop or evict the knight without conceding the dark-squared bishop (bishop-vs-knight, prophylaxis heuristics); Bb5 is loose: ...a6 or ...c6 gains tempo and may free Black's game; d5 wedge needs over-protection against future ...c6/...e6 breaks; avoid letting ...Nxe3 hand Black the bishop pair and open my f-file structure.
6. Candidates Candidates: h3 (Evicts the g4-knight with tempo; if Nxe3 fxe3 reinforces d4/center, otherwise knight retreats passively while I keep my dark-squared bishop.) | Bf4 (Saves the bishop actively, eyeing c7/d6 dark squares an…
- chess.js.legal_moves0ms
- llm.candidates20742ms · $0.0846
full reasoning
Candidates: h3 (Evicts the g4-knight with tempo; if Nxe3 fxe3 reinforces d4/center, otherwise knight retreats passively while I keep my dark-squared bishop.) | Bf4 (Saves the bishop actively, eyeing c7/d6 dark squares and supporting the central clamp without conceding the bishop pair to Ng4.) | Bd2 (Solid retreat preserving the bishop, keeps d4 intact and avoids tactical concessions; over-protects against future ...c6 breaks.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: h3 — Evicts the intruding knight with tempo. If Nxe3 fxe3 my doubled pawns over-protect d4 and open the f-file; more likely the knight retreats passively, leaving my bishop pair and d5 wedge intact.. Rejected…
- llm.reflect18398ms · $0.0657
full reasoning
Final pick: h3 — Evicts the intruding knight with tempo. If Nxe3 fxe3 my doubled pawns over-protect d4 and open the f-file; more likely the knight retreats passively, leaving my bishop pair and d5 wedge intact.. Rejected: e3f4, e3d2.
9. Commit Commit h3 (h2h3).
24...Nxe3stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: g4e3
- stockfish_uci1007ms
25.fxe3Opus
1. Observe Halbzug 25, Weiss am Zug. Phase: Mittelspiel. Schwarz +2 Punkte. Legale Zuege: 36. Criticality: 0.10.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search6ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Capture the undefended e3-knight with the f2-pawn, winning a clean piece, then consolidate and open the f-file for my rook. Convert the won material by trading into a favorable structure where my bisho…
- llm.plan23831ms · $0.0788
full reasoning
Phase: middlegame. Capture the undefended e3-knight with the f2-pawn, winning a clean piece, then consolidate and open the f-file for my rook. Convert the won material by trading into a favorable structure where my bishop pair and d4/d5 central pawns dominate, ignoring the minor self-inflicted pawn weaknesses since being up a piece outweighs them. Critical: Black's e3-knight forks Qd1 and Rf1 but is undefended and attacked by my f2-pawn — capturing it is forced and winning; after fxe3 my pawns triple-ish on c3/d4/e3 but that is irrelevant versus an extra knight; watch for any Black ...Qb6 or ...Bxd4 follow-up hitting my loosened structure, but none regains the piece.
6. Candidates Candidates: fxe3 (Captures the undefended e3-knight that forked Qd1/Rf1; wins a clean piece and opens the f-file for my rook.) | Ne5 (Centralizes the knight, but loses material since the e3-knight then takes Rf1 with che…
- chess.js.legal_moves0ms
- llm.candidates15400ms · $0.0482
full reasoning
Candidates: fxe3 (Captures the undefended e3-knight that forked Qd1/Rf1; wins a clean piece and opens the f-file for my rook.) | Ne5 (Centralizes the knight, but loses material since the e3-knight then takes Rf1 with check; clearly inferior to fxe3.) | Bc6 (Grabs the c6-pawn but ignores the e3-knight forking my queen and rook; vastly worse than the forced capture.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: fxe3 — The e3-knight is undefended and attacked by my f2-pawn. Capturing wins a clean piece outright; tripled e-pawns are irrelevant against an extra minor with the bishop pair and d4/d5 center. Memory: undef…
- llm.reflect9504ms · $0.0231
full reasoning
Final pick: fxe3 — The e3-knight is undefended and attacked by my f2-pawn. Capturing wins a clean piece outright; tripled e-pawns are irrelevant against an extra minor with the bishop pair and d4/d5 center. Memory: undefended forking pieces must be taken when attacker exists.. Rejected: f3e5, b5c6.
9. Commit Commit fxe3 (f2e3).
26...e6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: e7e6
- stockfish_uci1003ms
27.dxe6Opus
1. Observe Halbzug 27, Weiss am Zug. Phase: Mittelspiel. Weiss +1 Punkte. Legale Zuege: 39. Criticality: 0.25.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search6ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Resolve the d5/e6 central tension on my terms — either capture dxe6 to open the f-file and fix Black's structure, or support d5 — while rerouting the f3-knight toward the e5 outpost and keeping my extr…
- llm.plan28421ms · $0.1162
full reasoning
Phase: middlegame. Resolve the d5/e6 central tension on my terms — either capture dxe6 to open the f-file and fix Black's structure, or support d5 — while rerouting the f3-knight toward the e5 outpost and keeping my extra pawn safe. Convert the extra pawn by neutralizing Black's bishop pair through piece trades and dominating the central light squares with a knight outpost on e5 plus rook pressure on a half-open file. Critical: Black's ...exd5 liquidating my center and freeing the c8-bishop; ...a6/...c6 hitting my loose Bb5, forcing a trade or retreat that concedes the bishop pair tempo; my d5-pawn is currently undefended and my c3/e3 pawns are static weaknesses if the center opens.
6. Candidates Candidates: dxe6 (Resolves central tension on my terms, opens the half-open f-file, fixes Black's pawns and keeps my extra pawn; matches the convert-the-extra-pawn plan.) | Ne5 (Reroutes knight to the dominant e5 light-s…
- chess.js.legal_moves0ms
- llm.candidates15051ms · $0.0478
full reasoning
Candidates: dxe6 (Resolves central tension on my terms, opens the half-open f-file, fixes Black's pawns and keeps my extra pawn; matches the convert-the-extra-pawn plan.) | Ne5 (Reroutes knight to the dominant e5 light-square outpost, central control and pressure toward Black's king; core of my plan.) | e4 (Solidly supports d5, builds a broad pawn center and shields the loose c3/e3 squares before Black plays ...exd5 or ...a6.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: dxe6 — Liquidates the undefended d5-pawn before ...exd5 frees Black's game, opens the f-file for my rook, and after ...Bxe6 I keep a clean extra pawn with no central weaknesses.. Rejected: f3e5, e3e4.
- llm.reflect18240ms · $0.0746
9. Commit Commit dxe6 (d5e6).
28...Bxe6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: c8e6
- stockfish_uci1022ms
29.Bc4Opus
1. Observe Halbzug 29, Weiss am Zug. Phase: Mittelspiel. Weiss +1 Punkte. Legale Zuege: 38. Criticality: 0.25.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search11ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Resolve the loose Bb5 on my terms — trade it for the e6 bishop (Bxe6) to cash one of Black's bishops and damage his pawns, or retreat preemptively, then reroute Nf3 to the e5 outpost and double rooks o…
- llm.plan19273ms · $0.0737
full reasoning
Phase: middlegame. Resolve the loose Bb5 on my terms — trade it for the e6 bishop (Bxe6) to cash one of Black's bishops and damage his pawns, or retreat preemptively, then reroute Nf3 to the e5 outpost and double rooks on the half-open file. Convert the extra pawn by liquidating Black's bishop pair through a clean piece trade, planting a knight on e5, and grinding with rook pressure while keeping d4 solidly supported by c3. Critical: ...a6/...c6 hitting the loose Bb5 and winning the bishop-pair tempo — addressed by Bxe6 or timely retreat (memory: prophylaxis, bad-bishop trade); Black's two bishops gaining strength if the position opens (memory: bishop vs knight in open play) — counter by trading one bishop and keeping the structure semi-closed; engine defends optimally and won't blunder (opponent: engine defense) — needs patient pressure via e5 outpost + open-file rooks, not a quick attack; d4 becoming a long-term target if c3 is undermined.
6. Candidates Candidates: Ne5 (Plants the knight on the e5 outpost as planned, central dominance and supports a rook lift; core middlegame squeeze idea.) | Bc4 (Reroutes onto the c4-e6 diagonal, eyeing Black's good bishop to trade one…
- chess.js.legal_moves0ms
- llm.candidates14394ms · $0.0500
full reasoning
Candidates: Ne5 (Plants the knight on the e5 outpost as planned, central dominance and supports a rook lift; core middlegame squeeze idea.) | Bc4 (Reroutes onto the c4-e6 diagonal, eyeing Black's good bishop to trade one half of the bishop pair while sidestepping ...a6.) | Bd3 (Prophylactic retreat off the loose b5 square, dodging ...a6/...c6 tempo, keeps bishop active and structure semi-closed.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Bc4 — Solves the loose b5 bishop AND offers a trade on e6: Bxe6 fxe6 wrecks Black's pawns or Bxc4 kills the bishop pair. Either way I keep my extra pawn and a clean structure.. Rejected: f3e5, b5d3.
- llm.reflect15342ms · $0.0531
9. Commit Commit Bc4 (b5c4).
30...Bxc4stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: e6c4
- stockfish_uci1005ms
31.Ne5Opus
1. Observe Halbzug 31, Weiss am Zug. Phase: Mittelspiel. Schwarz +2 Punkte. Legale Zuege: 29. Criticality: 0.10.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. I am down a full minor piece (Black's two bishops vs my lone knight) for one pawn — net -2, so trading into an endgame loses. Kick the active Bc4 with b3 to gain a tempo, plant the knight on the e5 out…
- llm.plan29373ms · $0.1250
full reasoning
Phase: middlegame. I am down a full minor piece (Black's two bishops vs my lone knight) for one pawn — net -2, so trading into an endgame loses. Kick the active Bc4 with b3 to gain a tempo, plant the knight on the e5 outpost, and build a kingside initiative (h4-h5, queen lift) as my only practical counterplay. Refuse simplification, generate concrete kingside complications around f7/g6 with knight-on-e5 plus heavy pieces, betting on the engine's horizon limit to mishandle a slow-building attack rather than hoping to win material back cleanly. Critical: Bc4 currently x-rays my Rf1 and hits a2 — b3 must address it before I commit elsewhere; I am materially lost (-2); any mass trade is resignation, so I must keep pieces on (memory [exchange heavy pieces] inverts here — I have no initiative yet, but trading guarantees a lost endgame); Memory [weak squares outpost]: e5 is the one bright square — Ne5 hits f7/g6 and anchors any attack; Memory [piece coordination attack]: I need 3 pieces committed (Ne5 + queen lift + rook) before pushing pawns, or the attack fizzles; Opponent is Stockfish-1700: it defends rationally and won't blunder, so [engine horizon] is my only edge — set up threats deeper than its 6-move search.
6. Candidates Candidates: Ne5 (Plants knight on the e5 outpost, hits f7/g6 and attacks the Bc4 with tempo; core of my only counterplay.) | Qb3 (Attacks Bc4 and b7, forces the bishop to react, lifts queen toward the kingside without tr…
- chess.js.legal_moves0ms
- llm.candidates15891ms · $0.0553
full reasoning
Candidates: Ne5 (Plants knight on the e5 outpost, hits f7/g6 and attacks the Bc4 with tempo; core of my only counterplay.) | Qb3 (Attacks Bc4 and b7, forces the bishop to react, lifts queen toward the kingside without trading pieces.) | d5 (Grabs space, clamps center, and frees e4/Ne5 squares; keeps pieces on the board as material deficit demands.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Ne5 — Ne5 lands on the only good square, hitting f7/g6 while attacking Bc4 with tempo — it builds the kingside attack and gains a move toward winning back material, my one practical chance down a piece.. Reje…
- llm.reflect12409ms · $0.0327
full reasoning
Final pick: Ne5 — Ne5 lands on the only good square, hitting f7/g6 while attacking Bc4 with tempo — it builds the kingside attack and gains a move toward winning back material, my one practical chance down a piece.. Rejected: d1b3, d4d5.
9. Commit Commit Ne5 (f3e5).
32...Be6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: c4e6
- stockfish_uci1005ms
33.Qg4Opus
1. Observe Halbzug 33, Weiss am Zug. Phase: Mittelspiel. Schwarz +2 Punkte. Legale Zuege: 40. Criticality: 0.20.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Keep the e5 knight as a permanent outpost (heuristic 'weak squares outpost'), swing the queen toward the kingside (Qf3/Qg4-h-ideas) and prepare h4-h5 to pry open g6/f7. Coordinate at least three pieces…
- llm.plan31789ms · $0.1064
full reasoning
Phase: middlegame. Keep the e5 knight as a permanent outpost (heuristic 'weak squares outpost'), swing the queen toward the kingside (Qf3/Qg4-h-ideas) and prepare h4-h5 to pry open g6/f7. Coordinate at least three pieces (knight, queen, an f-file rook) before committing pawns, per the 'piece coordination attack' principle. Refuse every simplifying trade. Down a minor piece for a pawn, my only practical route is a slow-building kingside attack exploiting the e5 outpost and the engine's horizon limit — not material recovery or an endgame, which both lose. Critical: Black's Bg7xe5 trades off my best piece and simplifies toward a winning endgame — I must make that capture unattractive or keep the knight defended/active; the d4 pawn is a long-term weak point (c3/d4 structure) that Black's Be6 and rooks can target — I cannot afford to lose it; the 'exchange heavy pieces when worse' heuristic does NOT apply here: with a material deficit my survival depends on keeping attackers on, so I deliberately override it; Black's strongest reply is rapid central/queenside counterplay (c5 or Qd5/Rfd8 hitting d4) before my attack arrives — I focus play on the kingside sector where the engine calculates least (opponent 'engine horizon' pattern); Be6 eyes a2 and the a8-h1 diagonal — watch tempo-gaining bishop checks/x-rays before I weaken my king with g-pawn or h-pawn pushes.
6. Candidates Candidates: Qg4 (Swings queen kingside per 'piece coordination attack', hits Be6 with tempo, keeps e5 outpost and prepares h4-h5 storm.) | h4 (Prepares h5 to pry open g6/f7; slow-building attack in the sector the engine …
- chess.js.legal_moves0ms
- llm.candidates15771ms · $0.0621
full reasoning
Candidates: Qg4 (Swings queen kingside per 'piece coordination attack', hits Be6 with tempo, keeps e5 outpost and prepares h4-h5 storm.) | h4 (Prepares h5 to pry open g6/f7; slow-building attack in the sector the engine calculates least, refusing all trades.) | Qh5 (Direct kingside pressure on g6/f7 weaknesses, coordinates with e5 knight; maximizes attackers since survival needs pieces on.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Qg4 — Develops the attack with tempo by hitting Be6, forcing Black to react on my kingside rather than launch the ...c5/Qd5 counterplay against d4. Keeps the e5 outpost and primes h4-h5.. Rejected: h3h4, d1h5…
- llm.reflect11955ms · $0.0315
full reasoning
Final pick: Qg4 — Develops the attack with tempo by hitting Be6, forcing Black to react on my kingside rather than launch the ...c5/Qd5 counterplay against d4. Keeps the e5 outpost and primes h4-h5.. Rejected: h3h4, d1h5.
9. Commit Commit Qg4 (d1g4).
34...Qd6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: d8d6
- stockfish_uci1022ms
35.Qf3Opus
1. Observe Halbzug 35, Weiss am Zug. Phase: Mittelspiel. Schwarz +2 Punkte. Legale Zuege: 43. Criticality: 0.20.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search11ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Maintain the e5 knight outpost, keep queen+knight+f-rook coordinated on the kingside, and probe with h4-h5 to crack g6/f7 before Black consolidates. Avoid all simplifying trades, especially queen excha…
- llm.plan14920ms · $0.0465
full reasoning
Phase: middlegame. Maintain the e5 knight outpost, keep queen+knight+f-rook coordinated on the kingside, and probe with h4-h5 to crack g6/f7 before Black consolidates. Avoid all simplifying trades, especially queen exchanges. Down a piece for a pawn, generate a slow-building three-piece kingside attack that exploits the e5 outpost and Stockfish's search horizon, since material recovery or any endgame both lose objectively. Critical: Black's Bg7xe5 trades off my best piece and relieves pressure; Be6xg4 trades queens and kills my only attacking chance; my king lacks attackers nearby so I must not overextend pawns before pieces are coordinated (prophylaxis); Black's extra piece means any opened position without concrete threats favors the defender.
6. Candidates Candidates: Qh4 (Queen is en prise to Bxg4; retreat to h4 keeps it on the kingside, preserves the e5 outpost and the slow h-pawn storm plan.) | Qg5 (Saves the queen from Bxg4, eyes g6/kingside aggressively and keeps thre…
- chess.js.legal_moves0ms
- llm.candidates46443ms · $0.2165
full reasoning
Candidates: Qh4 (Queen is en prise to Bxg4; retreat to h4 keeps it on the kingside, preserves the e5 outpost and the slow h-pawn storm plan.) | Qg5 (Saves the queen from Bxg4, eyes g6/kingside aggressively and keeps three pieces aimed at Black's king without offering any trade.) | Qf3 (Dodges Bxg4, keeps queen active eyeing f7, retains e5 knight and avoids queen trade while staying flexible for kingside buildup.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Qf3 — Dodges Bxg4 to an unkickable square and immediately pairs with the e5 knight to hit f7, keeping all three pieces poised for kingside buildup without conceding tempo to a pawn.. Rejected: g4h4, g4g5.
- llm.reflect23482ms · $0.0621
9. Commit Commit Qf3 (g4f3).
36...c5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: c7c5
- stockfish_uci1006ms
37.Nxg6Opus
1. Observe Halbzug 37, Weiss am Zug. Phase: Mittelspiel. Schwarz +2 Punkte. Legale Zuege: 43. Criticality: 0.20.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Keep the e5 knight anchored, swing the f1-rook and queen toward g6/f7, and prepare h4-h5 to fracture Black's kingside pawn shield before he untangles. Down a piece for a pawn with no sound endgame, I m…
- llm.plan18471ms · $0.0593
full reasoning
Phase: middlegame. Keep the e5 knight anchored, swing the f1-rook and queen toward g6/f7, and prepare h4-h5 to fracture Black's kingside pawn shield before he untangles. Down a piece for a pawn with no sound endgame, I must generate a three-piece kingside attack (Q+N+R) that exploits the e5 outpost and Stockfish's search horizon, since any trade or simplification converts to a lost game. Critical: Bg7xe5 trades off my best attacker and kills the assault; Be6xg4-style queen-trade ideas must be denied; ...cxd4 opens the center and activates Black's bishops/rooks against my king; my attack still lacks a committed pawn-storm (h4-h5) and a second rook — coordination per [piece coordination attack] needs 3 pieces before pawns advance.
6. Candidates Candidates: h4 (Launches the committed pawn-storm the plan demands; h4-h5 fractures g6/h7 shield while N+Q+R stay aimed at the king.) | Qg4 (Centralizes queen toward g6/f7, eyes Be6, denies queen-trade simplification, an…
- chess.js.legal_moves0ms
- llm.candidates20236ms · $0.0628
full reasoning
Candidates: h4 (Launches the committed pawn-storm the plan demands; h4-h5 fractures g6/h7 shield while N+Q+R stay aimed at the king.) | Qg4 (Centralizes queen toward g6/f7, eyes Be6, denies queen-trade simplification, and keeps three attackers coordinating before pawns advance.) | Nxg6 (Tactical break: after fxg6 Qxa8 regains the exchange and shatters f7/g6, exploiting the e5 outpost and Black's loose back rank.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Nxg6 — Forcing shot: fxg6 forces, then Qf3xa8 (diagonal f3-e4-d5-c6-b7-a8 is clear) wins the rook, netting rook+pawn for the knight and shattering f7/g6. Concrete material recovery beats a slow attack while d…
- llm.reflect21277ms · $0.0819
full reasoning
Final pick: Nxg6 — Forcing shot: fxg6 forces, then Qf3xa8 (diagonal f3-e4-d5-c6-b7-a8 is clear) wins the rook, netting rook+pawn for the knight and shattering f7/g6. Concrete material recovery beats a slow attack while down a piece.. Rejected: h3h4, f3g4.
9. Commit Commit Nxg6 (e5g6).
38...fxg6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: f7g6
- stockfish_uci1004ms
39.d5Opus
1. Observe Halbzug 39, Weiss am Zug. Phase: Mittelspiel. Schwarz +4 Punkte. Legale Zuege: 36. Criticality: 0.20.
- material-counter0ms
2. Recall Position recall: 10 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: middlegame. Double rooks on the f-file behind the queen, probe f6/f7 and the light squares around Black's king, and play h4-h5 to crack the g6-pawn shelter, hunting a perpetual or tactical swindle before Black con…
- llm.plan25754ms · $0.0890
full reasoning
Phase: middlegame. Double rooks on the f-file behind the queen, probe f6/f7 and the light squares around Black's king, and play h4-h5 to crack the g6-pawn shelter, hunting a perpetual or tactical swindle before Black consolidates. Down two bishops for two pawns with a strategically lost game, my only realistic resource is a heavy-piece initiative against the slightly airy Black king (g6/light squares) aiming for perpetual or a horizon-based shot, since any mass simplification just converts to a clean loss. Critical: ...cxd4 opens the center and unleashes both Black bishops against my king — must weigh keeping the structure closed (prophylaxis heuristic); Be6 controls key light squares (f7/g4/a2-g8 diagonal), denying my queen and rook infiltration squares; the f-file is my only open line (open-file rooks heuristic) but I lack a third attacker — true coordinated mate is unlikely, so I aim for perpetual rather than a sound win; Stockfish defends optimally (opponent memory): no blunders expected, only horizon-deep sacrifices or repetition will save the half-point.
6. Candidates Candidates: h4 (Core plan: h4-h5 to crack the g6 shelter; only way to generate real heavy-piece play, queen-side approaches hang to Be6/g6.) | d5 (Attacks Be6 and keeps center closed (prophylaxis vs ...cxd4); after Bxd5 …
- chess.js.legal_moves0ms
- llm.candidates25279ms · $0.1013
full reasoning
Candidates: h4 (Core plan: h4-h5 to crack the g6 shelter; only way to generate real heavy-piece play, queen-side approaches hang to Be6/g6.) | d5 (Attacks Be6 and keeps center closed (prophylaxis vs ...cxd4); after Bxd5 Qxd5 my queen centralizes hitting a8, gaining activity.) | e4 (Opens lines for the f-file rook and clears f3-f6 route for the queen, fueling the only realistic attacking/perpetual try.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: d5 — Forces Bxd5 Qxd5, eliminating Black's key light-square defender, centralizing my queen with hits on a8 and the king, and reducing my material deficit while keeping the center closed against ...cxd4.. Rej…
- llm.reflect12247ms · $0.0344
full reasoning
Final pick: d5 — Forces Bxd5 Qxd5, eliminating Black's key light-square defender, centralizing my queen with hits on a8 and the king, and reducing my material deficit while keeping the center closed against ...cxd4.. Rejected: h3h4, e3e4.
9. Commit Commit d5 (d4d5).
40...Rxf3stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: f8f3
- stockfish_uci1009ms
41.Rxf3Opus
1. Observe Halbzug 41, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 20. Criticality: 0.10. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Without a queen, abandon swindle dreams from the prior plan (perpetual is impossible) and switch to damage-control: defend e3/h3 against the entrenched Rf3, trade one pair of rooks to blunt Black's attack…
- llm.plan23270ms · $0.0805
full reasoning
Phase: endgame. Without a queen, abandon swindle dreams from the prior plan (perpetual is impossible) and switch to damage-control: defend e3/h3 against the entrenched Rf3, trade one pair of rooks to blunt Black's attacking force, and keep my king off the long light-square diagonal of Be6. Down a full queen plus the bishop pair for two pawns (+13), the position is objectively resigned; my only practical task is to set Black maximum technical friction, contest the f-file, and avoid immediate mate, since no concrete perpetual or material-regaining shot exists. Critical: opponent threats: ...Rxe3 and ...Rxh3 win more pawns, ...Bxc3/...cxd4 opens lines, ...Qd6 eyes h2/g3 mating nets with the bishop pair; own weaknesses: no queen, exposed g1 king, weak e3/h3/c3 pawns, passive Ra1; concrete tactical threats: Black can engineer mate via Qh2+/Qg3+ supported by Bg7 and Rf3 — defending the king trumps everything.
6. Candidates Candidates: Rxf3 (The entrenched Rf3 is undefended — capturing with the rook wins a full rook cleanly while keeping pawn structure intact and contesting the f-file.) | gxf3 (Also captures the hanging Rf3, but exposes the…
- chess.js.legal_moves0ms
- llm.candidates15423ms · $0.0522
full reasoning
Candidates: Rxf3 (The entrenched Rf3 is undefended — capturing with the rook wins a full rook cleanly while keeping pawn structure intact and contesting the f-file.) | gxf3 (Also captures the hanging Rf3, but exposes the g1 king on the long diagonal toward Bg7 — material gain offset by king-safety risk.) | dxe6 (Wins the light-squared bishop, removing the attacker eyeing my king, though Rf3 remains and is the bigger prize.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Rxf3 — Rf3 is completely undefended (g-pawn on g6, neither bishop nor queen covers f3). Capturing with the rook wins a full rook cleanly, contests the f-file, and keeps my king safe behind intact pawns.. Reje…
- llm.reflect11948ms · $0.0338
full reasoning
Final pick: Rxf3 — Rf3 is completely undefended (g-pawn on g6, neither bishop nor queen covers f3). Capturing with the rook wins a full rook cleanly, contests the f-file, and keeps my king safe behind intact pawns.. Rejected: g2f3, d5e6.
9. Commit Commit Rxf3 (f1f3).
42...Bxd5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: e6d5
- stockfish_uci1023ms
43.Rf8+Opus
1. Observe Halbzug 43, Weiss am Zug. Phase: Endspiel. Schwarz +9 Punkte. Legale Zuege: 23. Criticality: 0.10. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search10ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Move the attacked Rf3 to safety (off the Bd5 diagonal) while guarding e3 and g2, offer a rook trade to thin Black's force, and keep my king sheltered on g1/h2 away from the a8-h1 diagonal. Down a full que…
- llm.plan24288ms · $0.0680
full reasoning
Phase: endgame. Move the attacked Rf3 to safety (off the Bd5 diagonal) while guarding e3 and g2, offer a rook trade to thin Black's force, and keep my king sheltered on g1/h2 away from the a8-h1 diagonal. Down a full queen for two pawns this is objectively resigned; the only realistic goal is maximum technical friction — survive immediate tactics, trade pieces toward a barely-defensible rook ending, and exploit only an engine horizon-error, not hope for a defensive collapse. Critical: ...Bxf3 winning the exchange and ...Qd6/...Qd5 mating threats on the long light diagonal; own weakness: Rf3 hangs to Bd5, e3 and g2 are tender, back rank loose; no perpetual or material-regaining shot exists — opponent (engine) will find every best defensive/attacking resource.
6. Candidates Candidates: Rf8+ (Forces a rook trade (Rxf8), thinning Black's attacking force and reducing material toward a barely-defensible ending. Saves rook from Bxf3.) | Rg3 (Steps off the d5-f3 diagonal while shoring up g2 and t…
- chess.js.legal_moves0ms
- llm.candidates17247ms · $0.0510
full reasoning
Candidates: Rf8+ (Forces a rook trade (Rxf8), thinning Black's attacking force and reducing material toward a barely-defensible ending. Saves rook from Bxf3.) | Rg3 (Steps off the d5-f3 diagonal while shoring up g2 and the kingside, keeping the rook active near my king.) | Rf4 (Simplest escape from Bxf3, stays on a safe square holding the f-file with no immediate tactic against it.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Rf8+ — Only move that doesn't drop the rook: both Rg3 and Rf4 hang to the queen on the d6-g3/f4 diagonal. Rf8+ forces Rxf8, trading a pair of attackers and giving the longest technical resistance.. Rejected: …
- llm.reflect19285ms · $0.0561
full reasoning
Final pick: Rf8+ — Only move that doesn't drop the rook: both Rg3 and Rf4 hang to the queen on the d6-g3/f4 diagonal. Rf8+ forces Rxf8, trading a pair of attackers and giving the longest technical resistance.. Rejected: f3g3, f3f4.
9. Commit Commit Rf8+ (f3f8).
44...Bxf8stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: g7f8
- stockfish_uci1003ms
45.Rd1Opus
1. Observe Halbzug 45, Weiss am Zug. Phase: Endspiel. Schwarz +14 Punkte. Legale Zuege: 15. Criticality: 0.10. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Offer a rook trade with Ra1-d1/Ra1-e1 to thin Black's attacking force, keep my king on g1/h2 off the a8-h1 diagonal, and contest the only open file so Black cannot double or infiltrate the back rank for f…
- llm.plan21824ms · $0.0716
full reasoning
Phase: endgame. Offer a rook trade with Ra1-d1/Ra1-e1 to thin Black's attacking force, keep my king on g1/h2 off the a8-h1 diagonal, and contest the only open file so Black cannot double or infiltrate the back rank for free. Down a full queen-plus-bishop for nothing this is objectively resigned; the sole realistic goal is maximum technical friction — survive each immediate mating idea, trade my rook for activity, and prolong only in case of an engine horizon-error, not hope for a collapse (opponent-pattern: engines defend/attack rationally, do not bank on blunders). Critical: Bd5 + Qd6 battery on the long light diagonal threatens ...Qd1+/...Bxg2 mating nets; back-rank weakness: my king is boxed on g1, ...Ra8-d8/e8 with check support is lethal; memory hits are rook-ending theory (Philidor/Lucena/king-activation) and do NOT apply here — I am not in a pawn-down R+P ending but a queen-down lost middlegame-into-endgame, so theory cards are noted-but-discarded; only 'rook-behind-passed-pawn' and 'king-activation' give marginal guidance toward keeping the rook active and king sheltered.
6. Candidates Candidates: Rd1 (Contests the d-file against the Bd5+Qd6 battery, offers a rook trade to thin Black's attacking force; only real friction try.) | Kf2 (Steps off the boxed-in back rank to defuse mating nets and gives the …
- chess.js.legal_moves0ms
- llm.candidates13366ms · $0.0345
full reasoning
Candidates: Rd1 (Contests the d-file against the Bd5+Qd6 battery, offers a rook trade to thin Black's attacking force; only real friction try.) | Kf2 (Steps off the boxed-in back rank to defuse mating nets and gives the king a flight square toward the center.) | Re1 (Keeps the rook active on an open file, eyes e-file infiltration and supports a future trade; avoids passive back-rank rot.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Rd1 — Bd5 blocks the d-file, so ...Qxd1+ is impossible; Rd1 safely attacks the defended bishop and forces the only real trade (Rxd5 Qxd5), thinning Black's attacking battery for maximum friction in a lost pos…
- llm.reflect17849ms · $0.0639
full reasoning
Final pick: Rd1 — Bd5 blocks the d-file, so ...Qxd1+ is impossible; Rd1 safely attacks the defended bishop and forces the only real trade (Rxd5 Qxd5), thinning Black's attacking battery for maximum friction in a lost position.. Rejected: g1f2, a1e1.
9. Commit Commit Rd1 (a1d1).
46...Bxa2stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: d5a2
- stockfish_uci1024ms
47.Rxd6Opus
1. Observe Halbzug 47, Weiss am Zug. Phase: Endspiel. Schwarz +15 Punkte. Legale Zuege: 18. Criticality: 0.10. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search9ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Contest the d-file with my only active piece, keep my king on g1/h2 off the long diagonal that Ba2 rakes, and look to swap the rook for any Black piece to thin the attacking force. Objectively lost down q…
- llm.plan18757ms · $0.0584
full reasoning
Phase: endgame. Contest the d-file with my only active piece, keep my king on g1/h2 off the long diagonal that Ba2 rakes, and look to swap the rook for any Black piece to thin the attacking force. Objectively lost down queen-plus-bishop; the sole realistic goal is maximum technical friction — meet each concrete mating idea, trade the rook for activity, and prolong only on the chance of an opponent horizon-error, never banking on a blunder (opponent-pattern: engines defend/attack rationally). Critical: Qd6 controls the d-file and eyes d1/back-rank infiltration; Ba2 covers d5/g8 and pins my king to the first rank — back-rank mate motifs loom; my rook is the only counterweight: losing the d-file lets Black double or land a rook on d1 with the queen for a quick mate.
6. Candidates Candidates: Rxd6 (Wins the queen outright; d6 is only defended by Bf8, so rook-for-queen drastically cuts the deficit and removes the main attacker.) | Kf2 (Steps king off the back rank and the Ba2 diagonal, easing back-…
- chess.js.legal_moves0ms
- llm.candidates15888ms · $0.0406
full reasoning
Candidates: Rxd6 (Wins the queen outright; d6 is only defended by Bf8, so rook-for-queen drastically cuts the deficit and removes the main attacker.) | Kf2 (Steps king off the back rank and the Ba2 diagonal, easing back-rank mate motifs while keeping the rook active.) | Rd4 (Keeps rook on the d-file as counterweight, eyeing lateral defense and trades, contesting Black's only open line.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Rxd6 — Captures the queen, defended only by Bf8. Winning Black's queen for my rook removes the chief attacker and slashes the deficit from queen+bishop to roughly a piece — the only move that changes the eval…
- llm.reflect9508ms · $0.0207
full reasoning
Final pick: Rxd6 — Captures the queen, defended only by Bf8. Winning Black's queen for my rook removes the chief attacker and slashes the deficit from queen+bishop to roughly a piece — the only move that changes the evaluation.. Rejected: g1f2, d1d4.
9. Commit Commit Rxd6 (d1d6).
48...Bxd6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: f8d6
- stockfish_uci1022ms
49.g3Opus
1. Observe Halbzug 49, Weiss am Zug. Phase: Endspiel. Schwarz +11 Punkte. Legale Zuege: 8. Criticality: 0.10. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search18ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search7ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Down a full rook plus bishop with no active pieces, keep my king off the a2-g8 diagonal (g1/h2 shuffle), avoid immediate back-rank mate, and use pawn tempi to force Black to demonstrate technique rather t…
- llm.plan21302ms · $0.0469
full reasoning
Phase: endgame. Down a full rook plus bishop with no active pieces, keep my king off the a2-g8 diagonal (g1/h2 shuffle), avoid immediate back-rank mate, and use pawn tempi to force Black to demonstrate technique rather than gifting a faster finish. Objectively lost; the only goal is maximum technical friction — meet each concrete mating net, never hang a pawn for free, and prolong purely on the slim chance of an opponent horizon-error, not a hoped-for blunder. Critical: Ba2 rakes the long diagonal pinning my king to g8-corner mating ideas; Ra8 plus Bd6 set up back-rank and ...Rd8-d1 infiltration mates; my king has no luft beyond g2/h2, so a checking rook on the first or second rank is the lethal threat to track every move.
6. Candidates Candidates: g3 (Creates luft on g2 so a rook check on the first rank is no longer instant back-rank mate; tracks the lethal threat per plan.) | Kf2 (Steps the king off the back rank, sidestepping Ra8-a1 infiltration; f2 …
- chess.js.legal_moves0ms
- llm.candidates14017ms · $0.0438
full reasoning
Candidates: g3 (Creates luft on g2 so a rook check on the first rank is no longer instant back-rank mate; tracks the lethal threat per plan.) | Kf2 (Steps the king off the back rank, sidestepping Ra8-a1 infiltration; f2 is not on Ba2's diagonal, maximizing technical friction.) | h4 (Neutral tempo that avoids hanging a pawn and keeps the kingside pawn shell intact while forcing Black to prove technique.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: g3 — Urgent luft: with the pawn on g2 and king on g1, ...Ra1 is immediate back-rank mate. g3 vacates g2 as an escape square while keeping the king off Ba2's a2-g8 diagonal.. Rejected: g1f2, h3h4.
- llm.reflect19216ms · $0.0546
9. Commit Commit g3 (g2g3).
50...Bxg3stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: d6g3
- stockfish_uci1025ms
51.Kg2Opus
1. Observe Halbzug 51, Weiss am Zug. Phase: Endspiel. Schwarz +12 Punkte. Legale Zuege: 6. Criticality: 0.00. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search11ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Survive the immediate mating net around g1: shuffle the king to the least-covered safe square, push a pawn tempo only when no defensive king move is forced, and never concede a back-rank or long-diagonal …
- llm.plan23564ms · $0.0830
full reasoning
Phase: endgame. Survive the immediate mating net around g1: shuffle the king to the least-covered safe square, push a pawn tempo only when no defensive king move is forced, and never concede a back-rank or long-diagonal mate in one. Objectively lost down rook-plus-bishop with no counterplay; sole goal is maximal technical friction — force Black to execute clean mating technique move by move rather than gifting a faster finish, banking only on a horizon-error, not a hoped blunder. Critical: Ba2 rakes the a2-g8 / long light diagonal, pinning my king toward the g8-area and covering escape squares; Bg3 simultaneously blankets f2/h2/e1 so my king's real flight squares are scarce.; Ra8 plus the dark-squared bishop set up back-rank and ...Rd8-d1 / ...Re1 infiltration mates — every king step must keep a legal reply to a rook check.; Own weakness: king confined to g1/f1/h1 corridor with two bishops crisscrossing it; a single careless pawn push that removes a tempo could walk into mate-in-one.; Memory caveat — the Lucena/Philidor/Vancura rook-defense heuristics do NOT apply here: I hold no rook, so those drawing fortresses are unreachable; the 'king activation' and 'anti-neglecting king' principles also fail because my king is a mating target, not an attacker. Only the Zugzwang/tempo-reserve idea is faintly relevant for spending pawn moves.; Opponent is engine-class: expect the objectively best mating sequence every move (engine-defense/conversion pattern) — plan against the strongest continuation, not a slip..
6. Candidates Candidates: Kg2 (King escapes the g1/f1/h1 corridor upward; neither Ba2 (a2-g8/b1) nor Bg3 (f2/h2/e1) covers g2, gaining real flight squares.) | Kf1 (Sidesteps toward f1, uncovered by both bishops; keeps a legal king wal…
- chess.js.legal_moves0ms
- llm.candidates19902ms · $0.0701
full reasoning
Candidates: Kg2 (King escapes the g1/f1/h1 corridor upward; neither Ba2 (a2-g8/b1) nor Bg3 (f2/h2/e1) covers g2, gaining real flight squares.) | Kf1 (Sidesteps toward f1, uncovered by both bishops; keeps a legal king walk if Black opens with a rook check, maximizing defensive friction.) | h4 (Tempo-reserve pawn push for zugzwang stalling when no king move is forced; does not remove a needed flight square this move.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kg2 — Kg2 escapes the corridor onto a square neither bishop covers AND directly attacks the undefended Bg3 (no black pawn or piece guards g3), winning material back next move while gaining real flight squares…
- llm.reflect23748ms · $0.0660
full reasoning
Final pick: Kg2 — Kg2 escapes the corridor onto a square neither bishop covers AND directly attacks the undefended Bg3 (no black pawn or piece guards g3), winning material back next move while gaining real flight squares.. Rejected: g1f1, h3h4.
9. Commit Commit Kg2 (g1g2).
52...Be1stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: g3e1
- stockfish_uci1025ms
53.Kh2Opus
1. Observe Halbzug 53, Weiss am Zug. Phase: Endspiel. Schwarz +12 Punkte. Legale Zuege: 8. Criticality: 0.00. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search11ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Keep the king on the safest square (away from the a2-g8 diagonal rake and back-rank rook), avoid any mate-in-one, and force Black to demonstrate clean technique move by move rather than gifting a faster f…
- llm.plan18774ms · $0.0588
full reasoning
Phase: endgame. Keep the king on the safest square (away from the a2-g8 diagonal rake and back-rank rook), avoid any mate-in-one, and force Black to demonstrate clean technique move by move rather than gifting a faster finish. Objectively lost down rook-plus-bishop with zero counterplay; sole realistic goal is maximal technical friction, banking only on a horizon-error from the engine, not a hoped-for defensive blunder. Critical: Ba2 rakes the a2-g8 long light diagonal and pins my king's escape options; Ra8 controls the 8th rank and can swing to deliver back-rank/edge mates; Be1 covers dark escape squares (f2/d2) near my king, shrinking my king's box; every king move must be checked against an immediate mating net combining rook file/rank and both bishops.
6. Candidates Candidates: Kh2 (Tucks king toward the h-corner, off the a2-g8 rake, keeping h1/g1 as flight squares to prolong defense.) | e4 (Pure waiting move that keeps the king's current box intact and forces Black to find precise …
- chess.js.legal_moves0ms
- llm.candidates17346ms · $0.0567
full reasoning
Candidates: Kh2 (Tucks king toward the h-corner, off the a2-g8 rake, keeping h1/g1 as flight squares to prolong defense.) | e4 (Pure waiting move that keeps the king's current box intact and forces Black to find precise mating technique.) | h4 (Creates a luft-style buffer and a tempo-spending pawn push, maximizing technical friction without weakening the king's escape.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Steps the king off the a2-g8 diagonal that Ba2 rakes, freeing it from the bishop's grip and keeping h1/g1 as flight squares; passive pawn moves leave the king pinned on that diagonal.. Rejected: e3e4, h…
- llm.reflect13488ms · $0.0358
full reasoning
Final pick: Kh2 — Steps the king off the a2-g8 diagonal that Ba2 rakes, freeing it from the bishop's grip and keeping h1/g1 as flight squares; passive pawn moves leave the king pinned on that diagonal.. Rejected: e3e4, h3h4.
9. Commit Commit Kh2 (g2h2).
54...Bxc3stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: e1c3
- stockfish_uci1006ms
55.Kg3Opus
1. Observe Halbzug 55, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 6. Criticality: 0.00. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Shuffle the king to the least-mateable square, sidestep the a2-g8 diagonal rake and any back-rank/edge net, and refuse every fastest-mate line so Black must spend extra technical moves. Objectively lost d…
- llm.plan13953ms · $0.0408
full reasoning
Phase: endgame. Shuffle the king to the least-mateable square, sidestep the a2-g8 diagonal rake and any back-rank/edge net, and refuse every fastest-mate line so Black must spend extra technical moves. Objectively lost down rook-plus-bishop with zero counterplay (square-of-the-pawn and king-activation heuristics are moot — I have no passed pawn and no active king); sole goal is maximal technical friction per the 'engine defense/horizon' opponent notes, banking only on a horizon-error, never on a hoped-for collapse. Critical: Ba2 rakes the a2-g8 diagonal and cuts king escapes (bishop-pair concept applies for Black); Ra8 swings to the 8th/edge for back-rank-style mate — the Vancura/Philidor back-rank-mate-avoidance instinct of keeping the king off the rook's mating files is the relevant lesson here; Bc3 covers dark-square flight options, shrinking my king's box; must verify no mate-in-one before committing.
6. Candidates Candidates: Kg3 (Centralizes king off the corner and off the a2-g8 diagonal, maximizing flight squares and forcing Black to re-net for the mate.) | h4 (Keeps the king on h2 with all squares intact while burning a tempo; …
- chess.js.legal_moves0ms
- llm.candidates17240ms · $0.0410
full reasoning
Candidates: Kg3 (Centralizes king off the corner and off the a2-g8 diagonal, maximizing flight squares and forcing Black to re-net for the mate.) | h4 (Keeps the king on h2 with all squares intact while burning a tempo; avoids self-trapping and adds technical friction.) | e4 (Neutral pawn push preserving king mobility; refuses to walk into corner nets while making Black demonstrate clean technique.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kg3 — Down a rook and bishop with no counterplay, only goal is technical friction. Kg3 escapes the corner and the a2-g8 diagonal, opening f4/g4/h4 flight squares so Black must rebuild the mating net, costing …
- llm.reflect21855ms · $0.0420
full reasoning
Final pick: Kg3 — Down a rook and bishop with no counterplay, only goal is technical friction. Kg3 escapes the corner and the a2-g8 diagonal, opening f4/g4/h4 flight squares so Black must rebuild the mating net, costing extra moves.. Rejected: h3h4, e3e4.
9. Commit Commit Kg3 (h2g3).
56...Rf8stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: a8f8
- stockfish_uci1024ms
57.Kh2Opus
1. Observe Halbzug 57, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 6. Criticality: 0.00. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search14ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search10ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Keep the king on the safest available square, step off the a2-g8 diagonal that the bishop pair rakes, dodge any back-rank/edge mating net, and pick the move that lengthens the forced-mate distance the mos…
- llm.plan15393ms · $0.0384
full reasoning
Phase: endgame. Keep the king on the safest available square, step off the a2-g8 diagonal that the bishop pair rakes, dodge any back-rank/edge mating net, and pick the move that lengthens the forced-mate distance the most. Objectively lost down rook-plus-bishop with no passed pawn and no active counterplay; the only goal is maximal technical friction — force Black to spend extra precise moves and bank solely on an engine horizon-error, never on a hoped-for collapse. Critical: Ba2+Bc3 rake the long light/dark diagonals and cut king escape squares; the rook on f8 controls the back rank for mating nets; own weakness: king is the only mobile piece, 6 legal moves, every reply is technically losing — must avoid the fastest-mate squares; concrete threat: rook-plus-bishop coordination delivers a king-hunt; opponent notes confirm engine defense/conversion is flawless, so only a >6-move horizon slip helps.
6. Candidates Candidates: Kh2 (Retreat off the open third rank into the corner pocket; keeps king away from g4/h4 hunting squares, lengthening the mating net.) | Kg2 (Tuck the king back; stays off Bc3's a1-h8 diagonal and avoids advan…
- chess.js.legal_moves0ms
- llm.candidates14389ms · $0.0500
full reasoning
Candidates: Kh2 (Retreat off the open third rank into the corner pocket; keeps king away from g4/h4 hunting squares, lengthening the mating net.) | Kg2 (Tuck the king back; stays off Bc3's a1-h8 diagonal and avoids advancing into the bishop pair's coordinated king-hunt.) | e4 (Non-committal pawn push burns a tempo without exposing the king further up the board; forces Black to spend extra precise moves.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Steps off the open third rank into the corner, dodging the Rf3+/Rf2+ tempo-checks and keeping the king away from g4/h4 hunting squares, maximizing the forced-mate distance in a lost position.. Rejected:…
- llm.reflect19221ms · $0.0653
full reasoning
Final pick: Kh2 — Steps off the open third rank into the corner, dodging the Rf3+/Rf2+ tempo-checks and keeping the king away from g4/h4 hunting squares, maximizing the forced-mate distance in a lost position.. Rejected: g3g2, e3e4.
9. Commit Commit Kh2 (g3h2).
58...h6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: h7h6
- stockfish_uci1004ms
59.Kg3Opus
1. Observe Halbzug 59, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 6. Criticality: 0.00. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Keep the king on the least-mated square, stay off the a2-g8 light-diagonal that Ba2 rakes, and pick whichever of the 6 legal moves lengthens the forced-mate distance the most. Objectively resigned-level l…
- llm.plan17881ms · $0.0391
full reasoning
Phase: endgame. Keep the king on the least-mated square, stay off the a2-g8 light-diagonal that Ba2 rakes, and pick whichever of the 6 legal moves lengthens the forced-mate distance the most. Objectively resigned-level lost down rook-plus-bishop with no passed pawn and no counterplay; the sole goal is maximal technical friction — make Black spend extra precise moves and bank only on an engine horizon-error, never on a hoped-for collapse (opponent memory: engines defend/convert rationally, no blunders expected). Critical: Ba2 rakes a2-g8 and Bc3 the long dark diagonal, jointly fencing king escape squares — relevant to 'neglecting king'/'king activation' heuristics inverted: here the king is the hunted, not an asset; Rf8 owns the back rank, so any king move to g8/h8-adjacent squares risks Rf1/Rf2 mating nets — the 'Vancura/Philidor' back-rank-mate avoidance idea (king off the 8th, watch the corner) applies; Zugzwang heuristic cuts against us: with only 6 legal moves and no waiting resource, every move worsens the position — choose the one that delays mate, not one that hopes for a swindle.
6. Candidates Candidates: Kg3 (King steps off the back rank toward the center, dodging immediate Rf1/Rf2 nets and the Ba2 light-diagonal; maximizes escape squares.) | e4 (Pawn push keeps king on h2 off the a2-g8 diagonal, burns a temp…
- chess.js.legal_moves0ms
- llm.candidates14055ms · $0.0460
full reasoning
Candidates: Kg3 (King steps off the back rank toward the center, dodging immediate Rf1/Rf2 nets and the Ba2 light-diagonal; maximizes escape squares.) | e4 (Pawn push keeps king on h2 off the a2-g8 diagonal, burns a tempo as a pseudo-waiting move to lengthen the forced sequence.) | h4 (Alternative pawn move preserving king shelter; avoids Kg2 (lands on the Ba2-raked light diagonal) and Kg1/Kh1 corner mating traps.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kg3 — Lost by a rook plus bishop; only goal is friction. Kg3 walks off the back rank toward the center, gaining the most escape squares and dodging Rf1/Rf2 nets plus the Ba2 a2-g8 diagonal, lengthening the fo…
- llm.reflect12412ms · $0.0336
full reasoning
Final pick: Kg3 — Lost by a rook plus bishop; only goal is friction. Kg3 walks off the back rank toward the center, gaining the most escape squares and dodging Rf1/Rf2 nets plus the Ba2 a2-g8 diagonal, lengthening the forced mate.. Rejected: e3e4, h3h4.
9. Commit Commit Kg3 (h2g3).
60...Bd5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: a2d5
- stockfish_uci1003ms
61.Kh2Opus
1. Observe Halbzug 61, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 5. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search11ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Pick the king move that maximizes distance-to-mate; keep off the a2-g8 and long dark diagonal that Bd5 and Bc3 jointly rake, and avoid back-rank/edge mating nets for as many ply as possible. Objectively r…
- llm.plan15368ms · $0.0427
full reasoning
Phase: endgame. Pick the king move that maximizes distance-to-mate; keep off the a2-g8 and long dark diagonal that Bd5 and Bc3 jointly rake, and avoid back-rank/edge mating nets for as many ply as possible. Objectively resigned (down rook plus bishop, no passers, no counterplay); play pure technical friction — force Black to spend extra precise moves and bank solely on an engine horizon-error, never on a hoped-for collapse. Critical: Bd5 controls a2-g8 light squares and Bc3 the long dark diagonal, fencing the king's escape; Rf8 delivers back-rank/file checks once king is boxed; own king is the only mobile unit — must dodge the tightest mating square each ply; no own counterplay or tempo resource exists (Zugzwang-style: every move worsens, choose least-bad).
6. Candidates Candidates: Kh2 (King steps off the g3 square that both bishops rake; h2 maximizes distance from Bd5's a2-g8 net and delays edge mating patterns.) | e4 (Non-committal tempo move keeping the king flexible on g3 while Bd5 …
- chess.js.legal_moves0ms
- llm.candidates17895ms · $0.0423
full reasoning
Candidates: Kh2 (King steps off the g3 square that both bishops rake; h2 maximizes distance from Bd5's a2-g8 net and delays edge mating patterns.) | e4 (Non-committal tempo move keeping the king flexible on g3 while Bd5 must react; forces Black an extra precise move, banking on horizon error.) | Kg4 (King advances into open space avoiding immediate back-rank box; least-bad active dodge though exposed to bishop checks.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Steps off g3 where both bishops and ...f5/Rf3 ideas converge; h2 tucks the king into the corner shelter behind the h3 pawn, maximizing distance from Bd5's a2-g8 net and stretching the mating sequence.. …
- llm.reflect12367ms · $0.0343
full reasoning
Final pick: Kh2 — Steps off g3 where both bishops and ...f5/Rf3 ideas converge; h2 tucks the king into the corner shelter behind the h3 pawn, maximizing distance from Bd5's a2-g8 net and stretching the mating sequence.. Rejected: e3e4, g3g4.
9. Commit Commit Kh2 (g3h2).
62...a5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: a7a5
- stockfish_uci1002ms
63.Kg3Opus
1. Observe Halbzug 63, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 4. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Pick the king move that maximizes distance-to-mate and king mobility; stay off the a2-g8 light diagonal raked by Bd5 and the long dark diagonal raked by Bc3, and delay any back-rank/edge mating net for as…
- llm.plan15400ms · $0.0477
full reasoning
Phase: endgame. Pick the king move that maximizes distance-to-mate and king mobility; stay off the a2-g8 light diagonal raked by Bd5 and the long dark diagonal raked by Bc3, and delay any back-rank/edge mating net for as many ply as possible. Objectively resigned (down rook plus bishop, no passers, zero counterplay) — play pure technical friction, forcing Black to spend extra precise moves and banking solely on an engine horizon-error, never on a hoped-for collapse. Critical: Bd5 controls the a2-g8 light squares while Bc3 owns the long dark diagonal, jointly fencing the king's escape; Rf8 delivers back-rank/file checks once the king is boxed onto the edge; own king is the only mobile piece — being driven to g1/h1 invites a quick mating net, so keep maximum escape squares.
6. Candidates Candidates: Kg3 (King steps off the back rank toward the center, maximizing escape squares and delaying any g1/h1 edge mating net per plan.) | h4 (Pawn push avoids committing the king to a worse square; keeps h2-g3 fligh…
- chess.js.legal_moves0ms
- llm.candidates10924ms · $0.0311
full reasoning
Candidates: Kg3 (King steps off the back rank toward the center, maximizing escape squares and delaying any g1/h1 edge mating net per plan.) | h4 (Pawn push avoids committing the king to a worse square; keeps h2-g3 flight intact and forces Black to spend tempi reorganizing.) | e4 (Neutral pawn advance that gains a square, contests the d5 bishop's diagonal influence, and stalls without weakening king flights.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kg3 — King escapes the cramped h-file corner toward the center, gaining flight squares (g4/h4/f4-area) and delaying the g1/h1 edge mating net Rf8 plus the two bishops are weaving; maximizes ply-to-mate.. Reje…
- llm.reflect14448ms · $0.0445
full reasoning
Final pick: Kg3 — King escapes the cramped h-file corner toward the center, gaining flight squares (g4/h4/f4-area) and delaying the g1/h1 edge mating net Rf8 plus the two bishops are weaving; maximizes ply-to-mate.. Rejected: h3h4, e3e4.
9. Commit Commit Kg3 (h2g3).
64...Kg7stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: g8g7
- stockfish_uci1002ms
65.Kh2Opus
1. Observe Halbzug 65, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 5. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Pick the king move giving maximum mobility and greatest distance-to-mate; stay off the a2-g8 diagonal (Bd5), the long dark diagonal (Bc3), and avoid edge/back-rank squares where Rf8 closes the net. Object…
- llm.plan29263ms · $0.0774
full reasoning
Phase: endgame. Pick the king move giving maximum mobility and greatest distance-to-mate; stay off the a2-g8 diagonal (Bd5), the long dark diagonal (Bc3), and avoid edge/back-rank squares where Rf8 closes the net. Objectively lost (down rook plus bishop, no passers, no counterplay) — play pure technical friction to force the maximum number of precise ply, banking solely on a possible engine horizon-error, never on a hoped-for collapse. Critical: Bd5+Bc3 jointly fence the king by raking both color diagonals; Rf8 covers f-file and back rank for mating net; no own counterplay or threats whatsoever — every move is a delaying move; must dodge zugzwang/edge squares that shorten distance-to-mate.
6. Candidates Candidates: Kh2 (Retreat off both raking diagonals (Bd5/Bc3), maximizing distance-to-mate and dodging Rf8 back-rank net; pure friction move.) | Kg4 (Most central king step preserving mobility, but exposed to g6/h6 and Bd…
- chess.js.legal_moves0ms
- llm.candidates14827ms · $0.0372
full reasoning
Candidates: Kh2 (Retreat off both raking diagonals (Bd5/Bc3), maximizing distance-to-mate and dodging Rf8 back-rank net; pure friction move.) | Kg4 (Most central king step preserving mobility, but exposed to g6/h6 and Bd5+ checks; keeps options open longer.) | e4 (Interposes a pawn blunting the d5-bishop diagonal and gives the king an extra escape tempo; delays the net.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Steps off both raking diagonals (Bd5 light, Bc3 dark) and away from Rf8's back-rank/f-file net, giving the king a quiet square with no immediate checks—maximizes distance-to-mate as pure friction.. Reje…
- llm.reflect15381ms · $0.0377
full reasoning
Final pick: Kh2 — Steps off both raking diagonals (Bd5 light, Bc3 dark) and away from Rf8's back-rank/f-file net, giving the king a quiet square with no immediate checks—maximizes distance-to-mate as pure friction.. Rejected: g3g4, e3e4.
9. Commit Commit Kh2 (g3h2).
66...a4stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: a5a4
- stockfish_uci1006ms
67.Kg3Opus
1. Observe Halbzug 67, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 4. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Pick the king move with maximum mobility and longest distance-to-mate; stay off Bd5's a2-g8 diagonal and Bc3's long dark diagonal, avoid edge/back-rank squares where Rf8 closes the net. Force the maximum …
- llm.plan13879ms · $0.0330
full reasoning
Phase: endgame. Pick the king move with maximum mobility and longest distance-to-mate; stay off Bd5's a2-g8 diagonal and Bc3's long dark diagonal, avoid edge/back-rank squares where Rf8 closes the net. Force the maximum number of precise opponent ply. Objectively lost — down rook plus bishop, two connected passers (a4/c5) for Black, no own counterplay or threats; play pure technical friction, banking solely on a possible engine horizon-error, never on a hoped-for collapse. Critical: Bd5 + Bc3 jointly fence the king by raking both color diagonals — every king square must dodge both; Rf8 controls the f-file and back rank, the mating-net backbone; do not step where it delivers or supports mate; Black's a4 and c5 passers plus extra rook mean no resource exists — relevant memory: 'engine defense' and 'engine horizon', so deny only short tactical wins and stretch the ply count.
6. Candidates Candidates: Kg3 (Maximum king mobility, steps off Bd5's a2-g8 diagonal and away from back-rank mating nets; forces longest precise sequence.) | e4 (Friction tempo that attacks Bd5 along the rank, forcing a bishop decisio…
- chess.js.legal_moves0ms
- llm.candidates10549ms · $0.0326
full reasoning
Candidates: Kg3 (Maximum king mobility, steps off Bd5's a2-g8 diagonal and away from back-rank mating nets; forces longest precise sequence.) | e4 (Friction tempo that attacks Bd5 along the rank, forcing a bishop decision and stretching ply count while king stays sheltered.) | h4 (Neutral pawn advance preserving king cover, denies short tactical wins and adds one more precise ply for a horizon error.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kg3 — Maximizes king activity off both bishop diagonals and the f-file; centralizing forces Black to reorganize the mating net, stretching the precise ply count for a possible horizon error.. Rejected: e3e4, …
- llm.reflect12883ms · $0.0336
full reasoning
Final pick: Kg3 — Maximizes king activity off both bishop diagonals and the f-file; centralizing forces Black to reorganize the mating net, stretching the precise ply count for a possible horizon error.. Rejected: e3e4, h3h4.
9. Commit Commit Kg3 (h2g3).
68...g5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: g6g5
- stockfish_uci1005ms
69.e4Opus
1. Observe Halbzug 69, Weiss am Zug. Phase: Endspiel. Schwarz +13 Punkte. Legale Zuege: 4. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Pick the king move that maximizes survival ply: stay off Bd5's a2-g8 light diagonal and Bc3's long dark diagonal simultaneously, avoid edge/back-rank squares where Rf8 completes a mating net, and keep the…
- llm.plan16785ms · $0.0481
full reasoning
Phase: endgame. Pick the king move that maximizes survival ply: stay off Bd5's a2-g8 light diagonal and Bc3's long dark diagonal simultaneously, avoid edge/back-rank squares where Rf8 completes a mating net, and keep the e3/h3 pawns as shields rather than walking into a forced sequence. Objectively resignable (down R+B with two connected passers a4/c5 and no counterplay); play pure technical friction to force the maximum number of precise opponent ply, banking solely on an engine horizon-error since memory confirms a 1700 engine defends/attacks rationally and will not blunder the conversion. Critical: Bd5 + Bc3 jointly rake both color complexes — every king square must dodge both diagonals at once (king-activation and opposition heuristics are irrelevant here, we cannot oppose anything); Rf8 controls the f-file and can deliver back-rank/edge mates if the king is herded to h-file or first rank; Black's a4/c5 passers (square-of-the-pawn says they queen freely) make any counterplay impossible — no own threats exist; only 4 legal moves, so the choice is mechanical: longest distance-to-mate, central as far as the bishops permit, never a self-trapping edge square.
6. Candidates Candidates: e4 (Keeps king central, blocks Bd5's light diagonal and opens an e3 retreat square; maximizes ply without walking to an edge.) | Kg4 (Activates king centrally off both bishop diagonals, staying away from back…
- chess.js.legal_moves0ms
- llm.candidates14380ms · $0.0493
full reasoning
Candidates: e4 (Keeps king central, blocks Bd5's light diagonal and opens an e3 retreat square; maximizes ply without walking to an edge.) | Kg4 (Activates king centrally off both bishop diagonals, staying away from back-rank/h-file mating nets that Rf8 threatens.) | Kh2 (Retreat behind h3/g-pawn shields; sidesteps current diagonal rakes, though edge risks Rf8 back-rank ideas later.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: e4 — Blocks Bd5's d5-h1 light diagonal toward my king and opens the e3 retreat square, keeping g3 shielded by h3 while adding maximum technical friction with no self-trapping.. Rejected: g3g4, g3h2.
- llm.reflect15689ms · $0.0585
9. Commit Commit e4 (e3e4).
70...Bxe4stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: d5e4
- stockfish_uci1007ms
71.Kh2Opus
1. Observe Halbzug 71, Weiss am Zug. Phase: Endspiel. Schwarz +14 Punkte. Legale Zuege: 3. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search3ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. With only 3 legal king moves and down R+B, pick the king square that dodges both bishop diagonals (Be4's light squares, Bc3's long dark diagonal) and avoids the back-rank/edge mating net that Rf8 complete…
- llm.plan12398ms · $0.0283
full reasoning
Phase: endgame. With only 3 legal king moves and down R+B, pick the king square that dodges both bishop diagonals (Be4's light squares, Bc3's long dark diagonal) and avoids the back-rank/edge mating net that Rf8 completes, stretching the forced sequence as long as possible. Objectively resignable — play pure technical friction to force maximum precise opponent ply, using the e3/h3 pawns as shields, banking only on a horizon-error that memory says a rational 1700 engine will not give. Critical: Rf8 + bishop pair build a mating net on light/dark squares simultaneously; own king has no shelter, walking into checks loses tempo and squares; two connected passers a4/c5 mean no White counterplay exists — opponent-memory confirms engine defends/converts rationally, expect no blunder.
6. Candidates Candidates: Kh2 (Tucks king toward h2 corner, off Be4's light diagonal and dodging the immediate Rf8-g8 net; longest friction.) | h4 (Keeps king on g3 with pawn shield, avoids walking into checks; preserves a tempo over …
- chess.js.legal_moves0ms
- llm.candidates12396ms · $0.0216
full reasoning
Candidates: Kh2 (Tucks king toward h2 corner, off Be4's light diagonal and dodging the immediate Rf8-g8 net; longest friction.) | h4 (Keeps king on g3 with pawn shield, avoids walking into checks; preserves a tempo over a king retreat.) | Kg4 (Active king push but exposed on g4 to bishop checks; weakest, walks toward mating squares.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Tucking to h2 hides the king behind the h3 pawn, off Be4's light-square diagonal, and sidesteps the immediate Rf8-g8 back-rank net. Maximizes forced-mate length in a lost position.. Rejected: h3h4, g3g4…
- llm.reflect9897ms · $0.0180
full reasoning
Final pick: Kh2 — Tucking to h2 hides the king behind the h3 pawn, off Be4's light-square diagonal, and sidesteps the immediate Rf8-g8 back-rank net. Maximizes forced-mate length in a lost position.. Rejected: h3h4, g3g4.
9. Commit Commit Kh2 (g3h2).
72...h5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: h6h5
- stockfish_uci1003ms
73.Kg1Opus
1. Observe Halbzug 73, Weiss am Zug. Phase: Endspiel. Schwarz +14 Punkte. Legale Zuege: 3. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Pick the king move that sidesteps both bishop diagonals (Be4 light squares, Bc3 dark long diagonal) and delays the Rf8-driven back-rank/edge mating net, stretching the forced mate as many ply as possible;…
- llm.plan15382ms · $0.0480
full reasoning
Phase: endgame. Pick the king move that sidesteps both bishop diagonals (Be4 light squares, Bc3 dark long diagonal) and delays the Rf8-driven back-rank/edge mating net, stretching the forced mate as many ply as possible; use the h3 pawn as the only available shelter square. Objectively resignable down a full rook plus bishop against a rational engine that — per opponent-pattern [engine defense] and [engine horizon at 1700] — will not blunder this conversion; play pure technical friction to force maximum precise opponent ply with zero realistic winning chance. Critical: Rf8 plus the bishop pair (Strategic-Concept [Bishop-Pair], open position) weave a simultaneous light/dark-square mating net; own king is boxed on the h-file edge with only 3 legal squares — [ANTI neglecting king] is moot, this is survival not activation; no counterplay, no passed pawn, no Philidor/Lucena drawing resource applies; the c5/a4 black pawns are irrelevant to the immediate mate; engine [horizon] edge does not help — mate is well within its 1700 search depth, so no horizon-error to bank on.
6. Candidates Candidates: Kg1 (Retreat toward the corner maximizes distance from both bishops and stretches the mating net the most ply; pure technical friction.) | Kg3 (Centralizing escape attempt, but walks into the dark-squared bis…
- chess.js.legal_moves0ms
- llm.candidates10350ms · $0.0224
full reasoning
Candidates: Kg1 (Retreat toward the corner maximizes distance from both bishops and stretches the mating net the most ply; pure technical friction.) | Kg3 (Centralizing escape attempt, but walks into the dark-squared bishop's long diagonal; fewer safe follow-up squares than Kg1.) | h4 (Only non-king move; tries to open a luft square but Bc3 controls the long diagonal so it gives almost no shelter.)
7. Verify Alle 3 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kg1 — Position is lost (down rook plus bishop), so play pure technical friction: retreating toward g1 maximizes distance from both bishops and the Rf8 mating net, demanding the most precise opponent ply befor…
- llm.reflect11504ms · $0.0258
full reasoning
Final pick: Kg1 — Position is lost (down rook plus bishop), so play pure technical friction: retreating toward g1 maximizes distance from both bishops and the Rf8 mating net, demanding the most precise opponent ply before mate.. Rejected: h2g3, h3h4.
9. Commit Commit Kg1 (h2g1).
74...Be5stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: c3e5
- stockfish_uci1021ms
75.h4Opus
1. Observe Halbzug 75, Weiss am Zug. Phase: Endspiel. Schwarz +14 Punkte. Legale Zuege: 1. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search11ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Only one legal move exists — play it. King is boxed on g1 by Rf8 (back-rank), Be4 (light diagonal toward g2/f1), and Bc5/g5 pawns; the single legal escape is the forced friction move that delays the matin…
- llm.plan13913ms · $0.0313
full reasoning
Phase: endgame. Only one legal move exists — play it. King is boxed on g1 by Rf8 (back-rank), Be4 (light diagonal toward g2/f1), and Bc5/g5 pawns; the single legal escape is the forced friction move that delays the mating net by the maximum available ply. Objectively lost — down a full rook and bishop with no counterplay; per opponent-pattern [engine defense] Stockfish-1700 converts cleanly, so the goal is pure technical resistance: force every precise mating ply rather than hope for a blunder that a rational engine will not make. Critical: Rf8 back-rank/edge mate threat; Be4 covers light-square king escapes (g2/f1), Be5 covers dark long diagonal; g5-h5 pawn duo plus h3 — no real shelter; zero realistic winning or drawing chance, single forced reply only.
6. Candidates Candidates: h4 (Only legal move; forced. Pushes the pawn since the king is fully boxed, maximizing resistance plies before the forced mate.)
- chess.js.legal_moves0ms
- llm.candidates8018ms · $0.0087
7. Verify Alle 1 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: h4 — Only legal move; forced. Pushes the pawn since the king is fully boxed, maximizing resistance plies before the forced mate.. Rejected: —.
9. Commit Commit h4 (h3h4).
76...Bd4+stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: e5d4
- stockfish_uci1020ms
77.Kh2Opus
1. Observe Halbzug 77, Weiss am Zug. Phase: Endspiel. Schwarz +14 Punkte. Legale Zuege: 1. Schach! Criticality: 0.45. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search9ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Only one legal move exists — play it. With Kg1 boxed by Rf8 (back rank), Be4 (light diagonal), and the c5/g5/h5 pawns, the forced move maximally delays the mating net by the available ply. No improvement …
- llm.plan15005ms · $0.0423
full reasoning
Phase: endgame. Only one legal move exists — play it. With Kg1 boxed by Rf8 (back rank), Be4 (light diagonal), and the c5/g5/h5 pawns, the forced move maximally delays the mating net by the available ply. No improvement plan is possible; the goal is to spend the legal tempo rather than concede. Objectively lost — down a full rook and bishop with zero counterplay; per opponent-pattern [engine defense] Stockfish-1700 converts cleanly, so the only honest goal is to force each precise mating ply and make the engine prove technique, not to hope for a blunder a rational engine will not commit. Critical: Rf8 delivers back-rank/edge mate once king escape squares vanish; Be4 covers the light escape squares (f1/g2) sealing the king on the edge; Bd4 and the g5/h5/c5 pawn mass leave no defensive resource — single forced move, no choice to evaluate.
6. Candidates Candidates: Kh2 (Only legal move. King is boxed; this spends the forced tempo and makes the engine prove the mating technique.)
- chess.js.legal_moves0ms
- llm.candidates5928ms · $0.0082
7. Verify Alle 1 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Only legal move. King is boxed; this spends the forced tempo and makes the engine prove the mating technique.. Rejected: —.
9. Commit Commit Kh2 (g1h2).
78...gxh4stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: g5h4
- stockfish_uci100ms
79.Kh3Opus
1. Observe Halbzug 79, Weiss am Zug. Phase: Endspiel. Schwarz +15 Punkte. Legale Zuege: 1. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search6ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Only one legal move exists — play the forced king move to spend the available ply; no improvement is possible against a clean conversion. Objectively lost — down rook plus bishop with zero counterplay; pe…
- llm.plan13117ms · $0.0315
full reasoning
Phase: endgame. Only one legal move exists — play the forced king move to spend the available ply; no improvement is possible against a clean conversion. Objectively lost — down rook plus bishop with zero counterplay; per opponent-pattern [engine defense] Stockfish-1700 converts rationally, so the only honest goal is to force each precise mating ply and make the engine prove technique. Critical: forced single legal move; no counterplay or tactical resource; mating net already formed around the boxed-in king.
6. Candidates Candidates: Kh3 (Only legal move. King is boxed in; forced to spend the ply. No counterplay exists in this lost position.)
- chess.js.legal_moves0ms
- llm.candidates8940ms · $0.0082
7. Verify Alle 1 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh3 — Only legal move. King is boxed in; forced to spend the ply. No counterplay exists in this lost position.. Rejected: —.
9. Commit Commit Kh3 (h2h3).
80...Bf6stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: d4f6
- stockfish_uci924ms
81.Kh2Opus
1. Observe Halbzug 81, Weiss am Zug. Phase: Endspiel. Schwarz +15 Punkte. Legale Zuege: 1. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Play the sole legal king move to spend the ply; no improvement is reachable against clean conversion. Objectively lost — down rook plus bishop with the king boxed on h3 and zero counterplay; the only hone…
- llm.plan7945ms · $0.0168
full reasoning
Phase: endgame. Play the sole legal king move to spend the ply; no improvement is reachable against clean conversion. Objectively lost — down rook plus bishop with the king boxed on h3 and zero counterplay; the only honest goal is to force the engine to prove each mating ply. Critical: only one legal move exists (forced king step); mating net already formed around the cornered king; no tactical resource, sacrifice, or counterplay available per [engine defense] rational conversion.
6. Candidates Candidates: Kh2 (Only legal move; king step is forced, spend the ply and make the engine prove the mate.)
- chess.js.legal_moves0ms
- llm.candidates6555ms · $0.0077
7. Verify Alle 1 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Only legal move; king step is forced, spend the ply and make the engine prove the mate.. Rejected: —.
9. Commit Commit Kh2 (h3h2).
82...a3stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: a4a3
- stockfish_uci741ms
83.Kh3Opus
1. Observe Halbzug 83, Weiss am Zug. Phase: Endspiel. Schwarz +15 Punkte. Legale Zuege: 2. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search9ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Spend the forced ply with the only sane king move; make the engine demonstrate the full mating sequence rather than resigning, since no resource changes the verdict. Objectively lost (down rook plus bisho…
- llm.plan10425ms · $0.0280
full reasoning
Phase: endgame. Spend the forced ply with the only sane king move; make the engine demonstrate the full mating sequence rather than resigning, since no resource changes the verdict. Objectively lost (down rook plus bishop, king boxed in the corner, zero counterplay) — the only honest goal is to force clean conversion ply by ply. Critical: only 2 legal moves exist — a forced king shuffle, no choice of substance; opponent [engine defense]: every best move will be found, no blunder to hope for; mating net already formed; memory hits (Lucena/Philidor/Vancura/Zugzwang) are defensive R+P techniques that do NOT apply — we have no rook and no pawn, so no fortress or draw resource is reachable.
6. Candidates Candidates: Kh3 (Only two legal moves; stepping to h3 keeps the king off the back rank one ply longer before forced mate.) | Kg1 (The alternative king shuffle into the corner; accepts mating net but is fully legal in a l…
- chess.js.legal_moves0ms
- llm.candidates7918ms · $0.0146
full reasoning
Candidates: Kh3 (Only two legal moves; stepping to h3 keeps the king off the back rank one ply longer before forced mate.) | Kg1 (The alternative king shuffle into the corner; accepts mating net but is fully legal in a lost position.)
7. Verify Alle 2 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh3 — Position is dead lost (down R+B, no counterplay). Kh3 grabs the only available luft, keeping the king off the back rank and forcing the longest mating sequence rather than walking into the corner.. Reje…
- llm.reflect7529ms · $0.0136
full reasoning
Final pick: Kh3 — Position is dead lost (down R+B, no counterplay). Kh3 grabs the only available luft, keeping the king off the back rank and forcing the longest mating sequence rather than walking into the corner.. Rejected: h2g1.
9. Commit Commit Kh3 (h2h3).
84...a2stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: a3a2
- stockfish_uci60ms
85.Kh2Opus
1. Observe Halbzug 85, Weiss am Zug. Phase: Endspiel. Schwarz +15 Punkte. Legale Zuege: 1. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search7ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Play the single forced king move and make the engine prove the mate ply by ply — no resource alters the lost verdict (down R+B, king cornered, a-pawn one step from queening). Honest goal is clean conversi…
- llm.plan12388ms · $0.0260
full reasoning
Phase: endgame. Play the single forced king move and make the engine prove the mate ply by ply — no resource alters the lost verdict (down R+B, king cornered, a-pawn one step from queening). Honest goal is clean conversion under forced moves: lose with technique, not by resignation, so the game record shows the full mating sequence. Critical: only one legal move exists — zero agency; Black a2-pawn promotes imminently and the rook+two-bishop force forms an unavoidable mating net; memory hits (Lucena/Philidor/Vancura/Zugzwang) are all defensive R+P techniques and do NOT apply — wrong material balance, I am the side being mated; engine-defense pattern confirms no blunder to hope for.
6. Candidates Candidates: Kh2 (Only legal move. King forced to h2 as a1=Q promotion is imminent; play it out to record the full mating sequence.)
- chess.js.legal_moves0ms
- llm.candidates7880ms · $0.0084
7. Verify Alle 1 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Only legal move. King forced to h2 as a1=Q promotion is imminent; play it out to record the full mating sequence.. Rejected: —.
9. Commit Commit Kh2 (h3h2).
86...a1=Qstockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: a2a1q
- stockfish_uci81ms
87.Kh3Opus
1. Observe Halbzug 87, Weiss am Zug. Phase: Endspiel. Schwarz +23 Punkte. Legale Zuege: 1. Criticality: 0.20. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search5ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search2ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Play the sole legal king move and let the forced mating sequence run; there is zero agency here, so the only honest objective is to record the full mate rather than resign. Lost beyond any resource (down …
- llm.plan10876ms · $0.0268
full reasoning
Phase: endgame. Play the sole legal king move and let the forced mating sequence run; there is zero agency here, so the only honest objective is to record the full mate rather than resign. Lost beyond any resource (down rook plus two bishops, king cornered on h2, Black's a1-queen and connected force already form the mating net) — convert the loss with clean technique by making every forced move until mate. Critical: Only one legal move exists (forced king step) — no branching to evaluate; Black queen on a1 plus rook f8 and two bishops control all escape squares; mate is imminent; Defensive memory hits (Philidor, Lucena, Vancura, opposition, square-of-pawn) are all R+P drawing techniques and do NOT apply to this wrong-material lost ending.
6. Candidates Candidates: Kh3 (Only legal move. King steps to h3; forced, no alternatives exist. Play it to record the full mate rather than resign.)
- chess.js.legal_moves0ms
- llm.candidates7928ms · $0.0085
7. Verify Alle 1 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh3 — Only legal move. King steps to h3; forced, no alternatives exist. Play it to record the full mate rather than resign.. Rejected: —.
9. Commit Commit Kh3 (h2h3).
88...Qf1+stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: a1f1
- stockfish_uci20ms
89.Kh2Opus
1. Observe Halbzug 89, Weiss am Zug. Phase: Endspiel. Schwarz +23 Punkte. Legale Zuege: 1. Schach! Criticality: 0.45. AUFGABE empfohlen (Material-Floor).
- material-counter0ms
2. Recall Position recall: 15 similar position(s) found (limit=15).
- nex_search14ms
3. Recall Opponent 3 pattern(s) found for Stockfish-class engine (tag=chess-engine-style).
- nex_entity_search4ms
4. Research middlegame/endgame — research not relevant when both tools off.
5. Plan Phase: endgame. Play the single legal king move (the only non-resign continuation) and let Black's forced mate run; no resignation, record the full mate cleanly. Lost beyond any resource — down rook plus two bishops with…
- llm.plan11407ms · $0.0196
full reasoning
Phase: endgame. Play the single legal king move (the only non-resign continuation) and let Black's forced mate run; no resignation, record the full mate cleanly. Lost beyond any resource — down rook plus two bishops with king cornered on h3 and Black's f1-queen, f8-rook and two bishops forming a complete mating net; the only honest goal is to make every forced move until mate. Critical: Black queen f1 + rook f8 + bishops e4/f6 control all king escape squares; only one legal move exists — zero branching to evaluate; mate is imminent and unavoidable.
6. Candidates Candidates: Kh2 (Only legal move; king steps to h2 as the forced continuation into Black's mating net.)
- chess.js.legal_moves0ms
- llm.candidates6433ms · $0.0077
7. Verify Alle 1 Kandidaten legal. cloud_eval disabled (default).
- chess.js.legal_recheck0ms
8. Reflect Final pick: Kh2 — Only legal move; king steps to h2 as the forced continuation into Black's mating net.. Rejected: —.
9. Commit Commit Kh2 (h3h2).
90...Qg2#stockfish-1700
- 1. Observe— missing —
- 2. Recall Position— missing —
- 3. Recall Opponent— missing —
- 4. Research— missing —
- 5. Plan— missing —
- 6. Candidates— missing —
- 7. Verify— missing —
- 8. Reflect— missing —
9. Commit Engine stockfish-1700 (stockfish UCI_Elo 1700) pick: f1g2
- stockfish_uci19ms
PGN
PGN anzeigen
[Event "Calibration chess-opus-tm vs stockfish-1700"] [Site "?"] [Date "2026-05-29"] [Round "?"] [White "chess-opus-tm"] [Black "stockfish-1700"] [Result "*"] 1. d4 Nf6 2. c4 g6 3. e4 Nxe4 4. Nc3 d5 5. cxd5 Nxc3 6. bxc3 Bg7 7. Nf3 Nd7 8. Be3 Nf6 9. Be2 O-O 10. O-O b5 11. Bxb5 Ng4 12. h3 Nxe3 13. fxe3 e6 14. dxe6 Bxe6 15. Bc4 Bxc4 16. Ne5 Be6 17. Qg4 Qd6 18. Qf3 c5 19. Nxg6 fxg6 20. d5 Rxf3 21. Rxf3 Bxd5 22. Rf8+ Bxf8 23. Rd1 Bxa2 24. Rxd6 Bxd6 25. g3 Bxg3 26. Kg2 Be1 27. Kh2 Bxc3 28. Kg3 Rf8 29. Kh2 h6 30. Kg3 Bd5 31. Kh2 a5 32. Kg3 Kg7 33. Kh2 a4 34. Kg3 g5 35. e4 Bxe4 36. Kh2 h5 37. Kg1 Be5 38. h4 Bd4+ 39. Kh2 gxh4 40. Kh3 Bf6 41. Kh2 a3 42. Kh3 a2 43. Kh2 a1=Q 44. Kh3 Qf1+ 45. Kh2 Qg2# *