Chess Puzzle #SeIt7 — Expert, White to move, middlegame

Position

White: king g1; queen h6; rooks c1/g3; knight d3; pawns a3/b2/d4/f2/g2/h2. Black: king h8; queen c6; rooks g7/g8; bishop e7; pawns a7/b6/e6/f5/f7/h7. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Qe4 — queen c6→e4. Now White to move.
2. Best move: Qxg7+ — queen h6→g7, captures rook, gives check. Opponent replies Rxg7 (rook g8→g7, captures queen).
3. Best move: Rc8+ — rook c1→c8, gives check. Opponent replies Bd8 (bishop e7→d8).
4. Best move: Rxd8+ — rook c8→d8, captures bishop, gives check. Opponent replies Rg8 (rook g7→g8).
5. Best move: Rgxg8# — rook g3→g8, captures rook, delivers checkmate.

Tactical themes

kingside attack, mate, mate in 4, middlegame, sacrifice, very long. The combination ends with Rgxg8# delivering checkmate.

Position data

FEN: 6rk/p3bprp/1pq1p2Q/5p2/3P4/P2N2R1/1P3PPP/2R3K1 b - - 1 28

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