Reasoning eval · Puzzle 9hlj6

1 of 3 models found the move, and said 5 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
SolutionPlayed (same)Black to move
Rating
2083(2000 band)
Solution
f6d5 e3d3 d5b4 a3b4 a4a3
Motifs
advantageendgamelong
FEN
3Q4/5ppk/5n1p/4P3/pB6/Pb2KPP1/7r/8 b - - 0 34
SolvedPlayed f6d5(−0cp)Claims true 67%10095 out · $0.1030 · 120.9s

Stated plan

Play Nd5+ forking the king and the bishop on b4, winning material.

Resolves to f6d5 · −0cp

Reasoning

The knight can jump to d5, giving check to the king on e3 while simultaneously attacking the undefended bishop on b4. The king must move away, and then the knight captures the bishop for free.

Claims extracted from it

2 true · 1 false · 0 unverifiable

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

  • True

    The knight can jump to d5, giving check to the king on e3

    linemoves=Nd5+assertion=type:gives_check

  • True

    The knight on d5 simultaneously attacks the undefended bishop on b4

    defendedsquare=b4by=blacknegated=true

  • False

    After Nd5+ the king must move away, and then the knight captures the bishop

    lineprefix=playedmoves=Nd5+ K~ Nxb4assertion=type:captures_piece piece:bishop