Reasoning eval · Puzzle VcbFQ
1 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
- 1682(1600 band)
- Solution
- e4g3 f1d3 f5d3 e5d3 g3h1
- Motifs
- crushinglongmiddlegame
- FEN
- r3k2r/pp3ppp/8/q1p1Nb2/2P1n3/PPp1PP2/2Q3PP/R3KB1R b KQkq - 0 15
Stated plan
Castle kingside to get the king to safety and move the rook away from the h8 square that was vulnerable to Nxf7.
Reasoning
White's knight on e5 threatens Nxf7, forking/attacking the rook on h8 (from f7 it hits d8, h8, etc.). Black should neutralize this while completing development. Castling kingside removes the rook from h8 to f8, tucks the king safely away, and the castling squares (f8, g8) are not attacked by any White piece, so it's fully legal and solves the tactical problem in one move.
Claims extracted from it
4 true · 0 false · 3 unverifiable
Hover a claim to light up the squares it is about.
- True
White's knight on e5 threatens Nxf7
piece_on_squaresquare=e5piece=knightby=white
- Unverifiable
The knight on e5 forking/attacking the rook on h8 after Nxf7
linemoves=Nxf7assertion=type:attacks_piece piece:rook
- Unverifiable
Castling kingside removes the rook from h8 to f8
lineprefix=playedmoves=O-Oassertion=type:piece_moved piece:rook from:h8 to:f8
- True
The castling squares f8 and g8 are not attacked by any White piece
attackedsquare=f8by=whitenegated=true
- True
The castling squares f8 and g8 are not attacked by any White piece
attackedsquare=g8by=whitenegated=true
- True
Castling kingside is fully legal
castling_rightsby=blackside=kingside
- Unverifiable
Castling kingside solves the tactical problem of the Nxf7 threat
lineprefix=playedmoves=O-Oassertion=type:neutralizes_threat