Reasoning eval · Puzzle 4OFsi

1 of 3 models found the move, and said 7 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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SolutionPlayedBlack to move
Rating
1178(1200 band)
Solution
f3f6 g5h5 f6h6
Motifs
endgamematemateIn2queenRookEndgameshort
FEN
8/p2R1pk1/8/6K1/3R2P1/PP3q2/7P/8 b - - 0 54
MissedPlayed f3e3(lost a forced mate)Claims true 0%1443 out · $0.0151 · 20.8s

Stated plan

Deliver check with Qe3+ to win the d4 rook via the diagonal fork.

Resolves to f3e3 · lost a forced mate

Reasoning

Qe3+ hits the king along the e3-g5 diagonal, forcing the king to move since nothing can block or capture. After the king moves away, the queen will capture the undefended rook on d4 via the same diagonal, winning material.

Claims extracted from it

0 true · 4 false · 0 unverifiable

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

  • False

    Qe3+ hits the king along the e3-g5 diagonal

    attackedsquare=g5by=black

  • False

    Qe3+ forces the king to move since nothing can block or capture

    lineprefix=playedmoves=Qe3+assertion=type:forced_reply pattern:king

  • False

    After the king moves away, the queen will capture the undefended rook on d4

    lineprefix=playedmoves=Qe3+ K~ Qxd4assertion=type:captures_piece piece:rook

  • False

    The rook on d4 is undefended

    defendedsquare=d4negated=true