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

Position

White: king h1; queen f2; rook f1; bishop e6; pawns a2/c4/d5/g5/h4. Black: king h6; queen e5; rook a8; bishop d4; pawns a7/b7/c5/d6/g6/h7. Black is ahead by 1 point of material. White to move.

Solution (4 moves)

1. Opponent setup: Kg7 — king h6→g7. Now White to move.
2. Best move: Qf7+ — queen f2→f7, gives check. Opponent replies Kh8 (king g7→h8).
3. Best move: Qf8+ — queen f7→f8, gives check. Opponent replies Rxf8 (rook a8→f8, captures queen).
4. Best move: Rxf8+ — rook f1→f8, captures rook, gives check. Opponent replies Kg7 (king h8→g7).
5. Best move: Rg8# — rook f8→g8, delivers checkmate.

Tactical themes

endgame, master, mate, mate in 4, sacrifice, very long. The combination ends with Rg8# delivering checkmate.

Position data

FEN: r7/pp5p/3pB1pk/2pPq1P1/2Pb3P/8/P4Q2/5R1K b - - 0 31

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