Reasoning eval · Puzzle PWnN7
1 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
- 1601(1600 band)
- Solution
- e3e2 f1e1 d5d1
- Motifs
- advancedPawnendgamematemateIn2short
- FEN
- 2k1r3/7R/1Q4P1/p2qrp2/8/4p3/PP3P2/5KR1 b - - 1 35
Stated plan
Play Qd1+ forcing Kg2, then exploit the open back rank to win the rook on g1.
Resolves to d5d1 · lost a forced mate
Reasoning
Black's queen can swing to d1 with check, since the d-file is completely open and the king on f1 is on the same rank as d1 with e1 empty between them. White's rook on g1 cannot block on e1 (it would have to jump over its own king), and the king cannot reach e1 or e2 (both attacked) or g1 (occupied), so the only legal reply is Kg2. This clears f1, after which Black's rook can swing to e1, hitting the g1-rook while being defended by the queen, winning material (Rxg1+ cannot be answered by Kxg1 since the queen guards g1). This sequence wins at least a rook for Black.
Claims extracted from it
2 true · 4 false · 6 unverifiable
Hover a claim to light up the squares it is about.
- True
Black's queen can swing to d1 with check
linemoves=Qd1+assertion=type:gives_check
- Unverifiable
The d-file is completely open
unverifiable
- Unverifiable
The king on f1 is on the same rank as d1 with e1 empty between them
unverifiable
- Unverifiable
White's rook on g1 cannot block on e1
unverifiable
- Unverifiable
The king cannot reach e1
- Unverifiable
The king cannot reach e2
- Unverifiable
The king cannot reach g1
- True
The only legal reply is Kg2
lineprefix=playedmoves=Qd1+assertion=type:forced_reply
- False
After Qd1+ Kg2, Black's rook can swing to e1
lineprefix=playedmoves=Qd1+ Kg2 Re1assertion=type:captures_piece piece:rook
- False
The rook on e1 hits the g1-rook while being defended by the queen
lineprefix=playedmoves=Qd1+ Kg2 Re1assertion=type:unverifiable
- False
Rxg1+ cannot be answered by Kxg1 since the queen guards g1
lineprefix=playedmoves=Qd1+ Kg2 Re1 Rxg1+assertion=type:unverifiable
- False
This sequence wins at least a rook for Black
lineprefix=playedmoves=Qd1+ Kg2 Re1assertion=type:material_delta side:black min_value:5