Reasoning eval · Puzzle HEclN
2 of 3 models found the move, and said 10 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.
- Rating
- 2477(2400 band)
- Solution
- f4g6 e5b8 c6c8 b8c8 e6c8
- Motifs
- crushingendgamelong
- FEN
- 8/6pk/2R1B3/4qP1p/5N1P/4n1PK/8/8 w - - 1 49
Stated plan
Deliver checkmate with the knight fork/check that the king cannot escape or capture.
Reasoning
Ng6+ is check from the knight (f4-g6). The knight is defended by the rook on c6 along the 6th rank, so the king cannot capture it. All escape squares are covered: h8 and f8 by the knight itself, h6 by the rook along the rank, and g8 by the bishop on e6 (e6-f7-g8 diagonal). This is checkmate.
Claims extracted from it
2 true · 5 false · 0 unverifiable
Hover a claim to light up the squares it is about.
- False
Ng6+ is check from the knight
linemoves=Ng6+assertion=type:gives_check
- True
The knight on g6 is defended by the rook on c6
defendedsquare=g6by=white
- False
h8 is covered by the knight on g6
controls_squaresquare=h8by=white
- False
f8 is covered by the knight on g6
controls_squaresquare=f8by=white
- False
h6 is covered by the rook on c6
controls_squaresquare=h6by=white
- True
g8 is covered by the bishop on e6
controls_squaresquare=g8by=white
- False
Ng6+ is checkmate
linemoves=Ng6+assertion=type:is_mate