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

Position

White: king b1; queen a4; rooks e7/g5; pawns b2/b3/c2/d3. Black: king c8; queen b7; rooks d8/h8; pawns a5/b6/c7/g4/h5. Black is ahead by 1 point of material. White to move.

Solution (3 moves)

1. Opponent setup: Rdg8 — rook d8→g8. Now White to move.
2. Best move: Rxg8+ — rook g5→g8, captures rook, gives check. Opponent replies Rxg8 (rook h8→g8, captures rook).
3. Best move: Re8+ — rook e7→e8, gives check. Opponent replies Rxe8 (rook g8→e8, captures rook).
4. Best move: Qxe8# — queen a4→e8, captures rook, delivers checkmate.

Tactical themes

endgame, long, mate, mate in 3. The combination ends with Qxe8# delivering checkmate.

Position data

FEN: 2kr3r/1qp1R3/1p6/p5Rp/Q5p1/1P1P4/1PP5/1K6 b - - 5 28

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