Chess Puzzle #BMPlg — Advanced, White to move, middlegame

Position

White: king h1; queen e2; rooks f1/g3; pawns c2/e4/g2/h2/h7. Black: king h8; queen a2; rooks a8/f8; bishop e6; pawns a7/e5/e7/f6. Black is ahead by 2 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Bc4 — bishop e6→c4. Now White to move.
2. Best move: Qg4 — queen e2→g4. Opponent replies Rf7 (rook f8→f7).
3. Best move: Qg8+ — queen g4→g8, gives check. Opponent replies Rxg8 (rook a8→g8, captures queen).
4. Best move: hxg8=Q# — pawn h7→g8, captures rook, promotes to queen, delivers checkmate.

Tactical themes

advanced pawn, exposed king, long, mate, mate in 3, middlegame, promotion, quiet move. The combination ends with hxg8=Q# delivering checkmate.

Position data

FEN: r4r1k/p3p2P/4bp2/4p3/4P3/6R1/q1P1Q1PP/5R1K b - - 1 25

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