Reasoning eval · Puzzle Nn2Ci
0 of 3 models found the move, and said 6 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
- 1918(2000 band)
- Solution
- a4b3 f7f8r a8f8
- Motifs
- advantagemiddlegameshort
- FEN
- r6k/5P1p/2p3p1/1p1bb3/p2pN3/qP1P1Q2/P1P2P2/1K1R2NR b - - 0 27
Stated plan
Block the f7 pawn's promotion square with the rook to neutralize the back-rank mate threat.
Reasoning
White's f7 pawn is one square from promoting, and after f8=Q it would give check along the back rank since a8 rook doesn't block the queen's path to h8. Black must stop this. Moving the rook to f8 blocks the pawn's advance (it can't capture diagonally since e8/g8 are empty) and neutralizes the promotion threat while keeping material intact.
Claims extracted from it
1 true · 2 false · 3 unverifiable
Hover a claim to light up the squares it is about.
- True
White's f7 pawn is one square from promoting
piece_on_squaresquare=f7piece=pawnby=white
- False
After f8=Q it would give check along the back rank since the a8 rook doesn't block the queen's path to h8
linemoves=f8=Qassertion=type:gives_check
- Unverifiable
Black must stop the promotion threat
unverifiable
- False
Moving the rook to f8 blocks the pawn's advance
lineprefix=playedmoves=Rf8assertion=type:forced_reply
- Unverifiable
The pawn can't capture diagonally on e8/g8 since those squares are empty
unverifiable
- Unverifiable
Rf8 neutralizes the promotion threat while keeping material intact
unverifiable