Chess Puzzle #RXM2y — Advanced, White to move, endgame

Position

White: king f6; pawns b4/c3/e5. Black: king h7; pawns b7/c6/g5/h5. Black is ahead by 1 point of material. White to move.

Solution (4 moves)

1. Opponent setup: g4 — pawn g5→g4. Now White to move.
2. Best move: e6 — pawn e5→e6. Opponent replies g3 (pawn g4→g3).
3. Best move: e7 — pawn e6→e7. Opponent replies g2 (pawn g3→g2).
4. Best move: e8=Q — pawn e7→e8, promotes to queen. Opponent replies g1=Q (pawn g2→g1, promotes to queen).
5. Best move: Qxh5+ — queen e8→h5, captures pawn, gives check.

Tactical themes

advanced pawn, crushing, endgame, pawn endgame, promotion, very long. The key move Qxh5+ captures with check, forcing a response.

Position data

FEN: 8/1p5k/2p2K2/4P1pp/1P6/2P5/8/8 b - - 0 45

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