Reasoning eval · Puzzle L1L30
2 of 3 models found the move, and said 7 false things along the way
Green is the solution, red is what the model played when it differed. Each claim below was pulled out of the prose beside it and checked against this exact position.
- Rating
- 1902(2000 band)
- Solution
- d5b7 b6c4 d6c7 b1b7 c7b7
- Motifs
- advantageendgamehangingPiecelong
- FEN
- 8/1Q3p2/pN1kp1r1/3q3p/8/2P4P/P4Pp1/1R4K1 b - - 3 34
Stated plan
Capture the white queen to neutralize the Qd7+/Qxd5 discovered-attack threat, trading queens on favorable terms.
Reasoning
White's queen on b7 threatens the deadly discovered-attack idea Qd7+ (defended by the knight on b6) followed by Qxd5, winning the black queen for free once the king steps off the d-file. The cleanest way to neutralize this is to eliminate White's queen immediately. Since d5-c6-b7 is a clear diagonal, Black can simply capture the queen with Qxb7. Although the rook on b1 recaptures, that's an even queen-for-queen trade, and it permanently removes White's mating/tactical resource, leaving Black with a healthy extra pawn (including the advanced g2 pawn) against White's extra knight - a favorable trade.
Claims extracted from it
3 true · 2 false · 2 unverifiable
Hover a claim to light up the squares it is about.
- True
White's queen on b7 threatens the discovered-attack idea Qd7+
piece_on_squaresquare=b7piece=queenby=white
- True
The knight on b6 defends d7
defendedsquare=d7by=white
- False
After Qd7+, Qxd5 wins the black queen
linemoves=Qd7+ Qxd5assertion=type:captures_piece piece:queen
- True
Black can capture the queen with Qxb7
best_movemove=Qxb7
- False
After Qxb7, the rook on b1 recaptures
lineprefix=playedmoves=Qxb7 Rxb7assertion=type:forced_reply
- Unverifiable
The resulting position is an even queen-for-queen trade
unverifiable
- Unverifiable
After this trade, Black has a healthy extra pawn including the advanced g2 pawn against White's extra knight
unverifiable