Chess Puzzle #knXY6 — Master, Black to move, endgame

Position

White: king f4; knight d6; pawns d4/e5/f6. Black: king h5; bishop c2; pawns b4/c6/d5/f7. Black is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Nxf7 — knight d6→f7, captures pawn. Now Black to move.
2. Best move: b3 — pawn b4→b3. Opponent replies Ng5 (knight f7→g5).
3. Best move: b2 — pawn b3→b2. Opponent replies f7 (pawn f6→f7).
4. Best move: b1=Q — pawn b2→b1, promotes to queen. Opponent replies f8=Q (pawn f7→f8, promotes to queen).
5. Best move: Qc1+ — queen b1→c1, gives check.

Tactical themes

advanced pawn, crushing, endgame, promotion, very long. The key move is b3.

Position data

FEN: 8/5p2/2pN1P2/3pP2k/1p1P1K2/8/2b5/8 w - - 0 52

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