Reasoning eval · Puzzle IG2S9

1 of 3 models found the move, and said 14 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
2035(2000 band)
Solution
c7a5 e2c3 a5a6 h6g6 f7g6
Motifs
crushingendgamelong
FEN
4r1k1/ppq2p2/2p2pbQ/2P5/3P4/P5P1/1P1KNP2/R7 b - - 3 22
MissedPlayed c7f4(−2755cp)Claims true 14%7166 out · $0.0723 · 90.0s

Stated plan

Deliver check with the queen to exploit the exposed white king and win material with tempo.

Reasoning

The white king on d2 is badly exposed with few defenders. Black's queen can jump to f4 with check along the diagonal, forcing the king to move or block. Whatever White chooses, Black gains serious tempo: if the king steps to c1/d1 Black wins the d4 pawn with tempo (and even attacks the rook on a1 in some lines), if it steps to d3 Black wins the pawn with an additional check, and if White blocks with Ne3, Black can crash through with ...Rxe3 followed by ...Qxe3+, ripping open the king's shelter. This check is far more forcing and dangerous than simply retreating the bishop.

Claims extracted from it

1 true · 6 false · 2 unverifiable

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

  • Unverifiable

    The white king on d2 is badly exposed

    unverifiable

  • True

    Black's queen can jump to f4 with check

    linemoves=Qf4+assertion=type:gives_check

  • False

    If the king steps to c1, Black wins the d4 pawn with tempo

    lineprefix=playedmoves=Qf4+ Kc1assertion=type:captures_piece piece:pawn

  • False

    If the king steps to d1, Black wins the d4 pawn with tempo

    lineprefix=playedmoves=Qf4+ Kd1assertion=type:captures_piece piece:pawn

  • Unverifiable

    If the king steps to d1 Black even attacks the rook on a1 in some lines

    lineprefix=playedmoves=Qf4+ Kd1assertion=type:attacked square:a1 by:black

  • False

    If the king steps to d3, Black wins the pawn with an additional check

    lineprefix=playedmoves=Qf4+ Kd3assertion=type:captures_piece piece:pawn

  • False

    If White blocks with Ne3, Black can crash through with Rxe3

    lineprefix=playedmoves=Qf4+ Ne3 Rxe3assertion=type:captures_piece piece:knight

  • False

    After Rxe3 Black plays Qxe3+ ripping open the king's shelter

    lineprefix=playedmoves=Qf4+ Ne3 Rxe3 Qxe3+assertion=type:gives_check

  • False

    Qf4+ is far more forcing and dangerous than simply retreating the bishop

    best_movemove=Qf4+