Reasoning eval · Puzzle kN9Py
2 of 3 models found the move, and said 3 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
- 2309(2400 band)
- Solution
- a2a1q h6e3 e7d8 g6g7 b1g1 e3g1 a1g1 g7g8r g1g8
- Motifs
- advancedPawnadvantagedefensiveMoveendgamepromotionveryLong
- FEN
- 2b5/1p1pk3/n5PQ/8/P1BP4/5K2/p7/1r6 b - - 0 39
Stated plan
Deliver check on the open f-file to seize the initiative before dealing with White's kingside pawn threat.
Reasoning
White's king on f3 is exposed on the f-file, and Black's rook on b1 can swing to f1 with check, since the f-file is completely open. This forcing check gains tempo, disrupts White's coordination, and prepares to push the a-pawn to promote or bring further material to bear, while also sidestepping any g6-g7 promotion race concerns since Black gets initiative first.
Claims extracted from it
2 true · 0 false · 4 unverifiable
Hover a claim to light up the squares it is about.
- True
White's king on f3 is exposed on the f-file
piece_on_squaresquare=f3piece=kingby=white
- Unverifiable
the f-file is completely open
unverifiable
- True
Black's rook on b1 can swing to f1 with check
linemoves=Rf1+assertion=type:gives_check
- Unverifiable
Rf1 gains tempo
unverifiable
- Unverifiable
Rf1 disrupts White's coordination
unverifiable
- Unverifiable
Rf1 prepares to push the a-pawn to promote
unverifiable