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

Position

White: king d2; knight g6; pawns e3/h7. Black: king a3; bishop f6; pawns b5/e4/f5. Black is ahead by 1 point of material. Black to move.

Solution (9 moves)

1. Opponent setup: h8=Q — pawn h7→h8, promotes to queen. Now Black to move.
2. Best move: Bxh8 — bishop f6→h8, captures queen. Opponent replies Nxh8 (knight g6→h8, captures bishop).
3. Best move: b4 — pawn b5→b4. Opponent replies Nf7 (knight h8→f7).
4. Best move: b3 — pawn b4→b3. Opponent replies Nd6 (knight f7→d6).
5. Best move: b2 — pawn b3→b2. Opponent replies Nb5+ (knight d6→b5, gives check).
6. Best move: Kb3 — king a3→b3. Opponent replies Nc3 (knight b5→c3).
7. Best move: f4 — pawn f5→f4. Opponent replies exf4 (pawn e3→f4, captures pawn).
8. Best move: e3+ — pawn e4→e3, gives check. Opponent replies Kd3 (king d2→d3).
9. Best move: e2 — pawn e3→e2. Opponent replies Nxe2 (knight c3→e2, captures pawn).
10. Best move: b1=Q+ — pawn b2→b1, promotes to queen, gives check.

Tactical themes

advanced pawn, crushing, deflection, endgame, promotion, quiet move, very long. The key move Bxh8 wins material.

Position data

FEN: 8/7P/5bN1/1p3p2/4p3/k3P3/3K4/8 w - - 1 55

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