Reasoning eval · Puzzle sDVnL

3 of 3 models found the move

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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h8
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a
SolutionPlayed (same)Black to move
Rating
1634(1600 band)
Solution
d7h3 f1e1 f7e7 e1d1 h3f1 d1c2 e7e2 c2b3 f1d1 b3c4 e2c2
Motifs
crushingendgameveryLong
FEN
8/2pq1r1k/R1Q4p/6p1/1P1p4/P2P1pP1/5P1P/5K2 b - - 1 36
SolvedPlayed d7h3(−0cp)Claims true 100%6156 out · $0.0622 · 75.8s

Stated plan

Deliver a powerful check on h3 exploiting the open diagonal to f1, forcing the king into an awkward square and seizing the initiative.

Reasoning

Black's queen can jump to h3 with check, since the diagonal h3-g2-f1 is completely open (g2 is empty). The white king is boxed in by its own pawns on f2, g3 and h2, so this check is awkward to meet: Kg1 or Ke1 are the only legal replies (nothing can block or capture the queen), and after either king move Black gains a strong initiative against the exposed king, with follow-up ideas like ...Qxg3 or infiltrating with the rook along the f-file, exploiting the weakened white king position while Black's advanced d4/f3 pawns remain dangerous.

Claims extracted from it

4 true · 0 false · 6 unverifiable

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

  • True

    Black's queen can jump to h3 with check

    linemoves=Qh3+assertion=type:gives_check

  • Unverifiable

    The diagonal h3-g2-f1 is completely open

    unverifiable

  • True

    g2 is empty

    piece_on_squaresquare=g2negated=true

  • Unverifiable

    The white king is boxed in by its own pawns on f2, g3 and h2

    unverifiable

  • True

    After Qh3+ Kg1 or Ke1 are the only legal replies

    lineprefix=playedmoves=Qh3+assertion=type:forced_reply pattern:king

  • Unverifiable

    After Qh3+ Kg1 Black gains a strong initiative against the exposed king

    unverifiable

  • Unverifiable

    After Qh3+ Ke1 Black gains a strong initiative against the exposed king

    unverifiable

  • True

    Black has follow-up ideas like ...Qxg3

    lineprefix=playedmoves=Qh3+ Kg1/Ke1 Qxg3assertion=type:captures_piece piece:pawn

  • Unverifiable

    Black can infiltrate with the rook along the f-file, exploiting the weakened white king position

    unverifiable

  • Unverifiable

    Black's advanced d4 and f3 pawns remain dangerous

    unverifiable