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

Position

White: king c2; queen g3; rooks f3/f4; knight b2; pawns b3/d4/h4. Black: king g8; queen a2; rooks b7/f8; pawns c4/c5/c6/e6/f7/g6. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Rxb3 — rook b7→b3, captures pawn. Now White to move.
2. Best move: Qxg6+ — queen g3→g6, captures pawn, gives check. Opponent replies fxg6 (pawn f7→g6, captures queen).
3. Best move: Rxf8+ — rook f4→f8, captures rook, gives check. Opponent replies Kh7 (king g8→h7).
4. Best move: R3f7+ — rook f3→f7, gives check. Opponent replies Kh6 (king h7→h6).
5. Best move: Rh8# — rook f8→h8, delivers checkmate.

Tactical themes

mate, mate in 4, middlegame, sacrifice, very long. The combination ends with Rh8# delivering checkmate.

Position data

FEN: 5rk1/1r3p2/2p1p1p1/2p5/2pP1R1P/1P3RQ1/qNK5/8 b - - 1 34

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