Reasoning eval · Puzzle ZDAE4

2 of 3 models found the move, and said 11 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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SolutionPlayedWhite to move
Rating
2092(2000 band)
Solution
d7c6 c4b4 c6c3 b4a4 c3a3
Motifs
endgamelongmatemateIn3
FEN
8/2pQ4/p5p1/1p5p/2kr2r1/6b1/PPP3K1/8 w - - 12 44
MissedPlayed d7c7(lost a forced mate)Claims true 67%1185 out · $0.0125 · 16.4s

Stated plan

Capture the c7 pawn with check to win material safely.

Reasoning

Qxc7+ captures a pawn while delivering check along the c-file to the king on c4, and the queen is completely safe there (nothing defends c7's approach), forcing the king to move and winning material with tempo.

Claims extracted from it

2 true · 1 false · 0 unverifiable

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

  • True

    Qxc7+ delivers check to the king on c4

    lineprefix=playedmoves=Qxc7+assertion=type:gives_check

  • True

    Qxc7+ captures a pawn

    lineprefix=playedmoves=Qxc7+assertion=type:captures_piece piece:pawn

  • False

    the queen on c7 is completely safe (nothing defends c7)

    defendedsquare=c7by=blacknegated=true