Chess Puzzle #pG62n — Expert, White to move, middlegame

Position

White: king h1; rooks d1/g1; bishops c3/c4; pawns a2/f2/f3/h2. Black: king g8; queen g5; rooks a8/f8; knight d7; pawns a7/b7/d6/f7/g7/h7. Black is ahead by 8 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Qf4 — queen g5→f4. Now White to move.
2. Best move: Rxg7+ — rook g1→g7, captures pawn, gives check. Opponent replies Kh8 (king g8→h8).
3. Best move: Rg8+ — rook g7→g8, gives check. Opponent replies Kxg8 (king h8→g8, captures rook).
4. Best move: Rg1+ — rook d1→g1, gives check. Opponent replies Qg3 (queen f4→g3).
5. Best move: Rxg3# — rook g1→g3, captures queen, delivers checkmate.

Tactical themes

attraction, double check, kingside attack, mate, mate in 4, middlegame, sacrifice, very long. The combination ends with Rxg3# delivering checkmate.

Position data

FEN: r4rk1/pp1n1ppp/3p4/6q1/2B5/2B2P2/P4P1P/3R2RK b - - 5 16

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