Chess Puzzle #0AJmn — Beginner, Black to move, endgame

Position

White: king h1; pawns a2/c7. Black: king f2; pawns a7/g3. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: c8=Q — pawn c7→c8, 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 Kh3 (king h2→h3).
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/p1P5/8/8/8/6p1/P4k2/7K w - - 0 39

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