Chess Puzzle #Ie4uR — Intermediate, White to move, middlegame

Position

White: king g1; queen g4; rooks a1/g3; pawns e3/f4/g2/h3. Black: king h8; queen c4; rook g8; bishop g7; pawns b4/c5/d6/f6/f7/h7. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Qe6 — queen c4→e6. Now White to move.
2. Best move: Qxg7+ — queen g4→g7, captures bishop, gives check. Opponent replies Rxg7 (rook g8→g7, captures queen).
3. Best move: Ra8+ — rook a1→a8, gives check. Opponent replies Qe8 (queen e6→e8).
4. Best move: Rxe8+ — rook a8→e8, captures queen, gives check. Opponent replies Rg8 (rook g7→g8).
5. Best move: Rgxg8# — rook g3→g8, captures rook, delivers checkmate.

Tactical themes

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

Position data

FEN: 6rk/5pbp/3p1p2/2p5/1pq2PQ1/4P1RP/6P1/R5K1 b - - 1 36

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