Reasoning eval · Puzzle 2UfqJ

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.

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a
SolutionPlayedBlack to move
Rating
1111(1200 band)
Solution
h5g4 h1h8 f6h8
Motifs
advantagehangingPiecemastermiddlegameshort
FEN
r3k2r/ppp2p2/2p2q2/4pN1p/4P1Q1/2PPB3/PP3PP1/R3K2R b KQkq - 0 16
MissedPlayed h8g8(−1886cp)Claims true 67%1009 out · $0.0108 · 13.8s

Stated plan

Move the rook to g8 to defend g7 and avoid the knight fork.

Reasoning

White threatens Nxg7+ forking king and rook h8, winning material. Black should move the rook off h8 to g8, defending g7 along the file and removing the fork target.

Claims extracted from it

2 true · 1 false · 1 unverifiable

Hover a claim to light up the squares it is about.

  • True

    White threatens Nxg7+ forking king and rook h8

    linemoves=Nxg7+assertion=type:gives_check

  • True

    Nxg7+ wins material

    linemoves=Nxg7+assertion=type:material_delta side:white min_value:1

  • False

    Black should move the rook off h8 to g8

    best_movemove=Rg8

  • Unverifiable

    Rg8 defends g7 along the file

    lineprefix=playedmoves=Rg8assertion=type:unverifiable