Reasoning eval · Puzzle Tfoto
2 of 3 models found the move, and said 8 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
- 1923(2000 band)
- Solution
- e4g2 h1g2 e8e2 e1e2 g4e2
- Motifs
- attractioncollinearMovecrushingkingsideAttacklongmiddlegame
- FEN
- 4r3/p5k1/1p4p1/1Pp3p1/PNPbb1q1/1Q4P1/6BP/3RR2K b - - 0 37
Stated plan
Win the loose knight on b4 with the c5-pawn, since it is under-defended and no good recapture regains the material.
Reasoning
The knight on b4 is only defended by the queen on b3 (the a4-pawn does not guard b4). Black’s c5-pawn can simply capture it: cxb4. If Qxb4, the queen cannot reach the bishop on d4 because the c4-pawn blocks the rank, so the bishop stays safe and Black nets a full piece for a pawn. If axb4 instead, Black is still up material the same way.
Claims extracted from it
2 true · 3 false · 1 unverifiable
Hover a claim to light up the squares it is about.
- True
The knight on b4 is only defended by the queen on b3
defendedsquare=b4by=b3
- False
The a4-pawn does not guard b4
defendedsquare=b4by=a4negated=true
- True
After cxb4 Qxb4, the queen cannot reach the bishop on d4 because the c4-pawn blocks the rank
linemoves=cxb4 Qxb4assertion=type:king_cannot_go square:d4 side:white
- Unverifiable
After cxb4 Qxb4, the bishop on d4 stays safe
linemoves=cxb4 Qxb4assertion=type:defended square:d4 by:black
- False
After cxb4 Qxb4, Black nets a full piece for a pawn
linemoves=cxb4 Qxb4assertion=type:material_delta side:black min_value:2
- False
After cxb4 axb4, Black is up material the same way
linemoves=cxb4 axb4assertion=type:material_delta side:black min_value:2