Chess Puzzle #4CLie — Beginner, Black to move, endgame

Position

White: king h1; pawns a2/b3/c4/d7. Black: king f2; pawns a5/b4/c5/g3/h3. Black is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: d8=Q — pawn d7→d8, promotes to queen. Now Black to move.
2. Best move: g2+ — pawn g3→g2, gives check. Opponent replies Kh2 (king h1→h2).
3. Best move: g1=Q+ — pawn g2→g1, promotes to queen, gives check. Opponent replies Kxh3 (king h2→h3, captures pawn).
4. Best move: Qg3# — queen g1→g3, delivers checkmate.

Tactical themes

advanced pawn, endgame, exposed king, long, mate, mate in 3, promotion, queen endgame. The combination ends with Qg3# delivering checkmate.

Position data

FEN: 8/3P4/8/p1p5/1pP5/1P4pp/P4k2/7K w - - 2 58

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