Chess Puzzle #y0rIB — Master, White to move, endgame

Position

White: king d5; pawns e4/f3/g2/h3. Black: king b4; pawns b5/f5/g7/h6. Material is balanced. White to move.

Solution (9 moves)

1. Opponent setup: fxe4 — pawn f5→e4, captures pawn. Now White to move.
2. Best move: fxe4 — pawn f3→e4, captures pawn. Opponent replies Kc3 (king b4→c3).
3. Best move: e5 — pawn e4→e5. Opponent replies b4 (pawn b5→b4).
4. Best move: e6 — pawn e5→e6. Opponent replies b3 (pawn b4→b3).
5. Best move: e7 — pawn e6→e7. Opponent replies b2 (pawn b3→b2).
6. Best move: e8=Q — pawn e7→e8, promotes to queen. Opponent replies b1=Q (pawn b2→b1, promotes to queen).
7. Best move: Qe3+ — queen e8→e3, gives check. Opponent replies Qd3+ (queen b1→d3, gives check).
8. Best move: Qxd3+ — queen e3→d3, captures queen, gives check. Opponent replies Kxd3 (king c3→d3, captures queen).
9. Best move: Ke6 — king d5→e6. Opponent replies h5 (pawn h6→h5).
10. Best move: Kf7 — king e6→f7.

Tactical themes

advanced pawn, crushing, endgame, pawn endgame, promotion, quiet move, very long. The key move Qxd3+ captures with check, forcing a response.

Position data

FEN: 8/6p1/7p/1p1K1p2/1k2P3/5P1P/6P1/8 b - - 0 40

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