Chess Puzzle #D2Kni — Advanced, White to move, middlegame

Position

White: king c1; queen e2; rooks h1/h2; pawns a2/b2/c2/d5/f3/f5. Black: king h7; queen e8; rooks a8/c8; pawns a7/b5/c7/d6/f4/f6/g5/h6. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Qxe2 — queen e8→e2, captures queen. Now White to move.
2. Best move: Rxh6+ — rook h2→h6, captures pawn, gives check. Opponent replies Kg7 (king h7→g7).
3. Best move: Rh7+ — rook h6→h7, gives check. Opponent replies Kg8 (king g7→g8).
4. Best move: Rh8+ — rook h7→h8, gives check. Opponent replies Kf7 (king g8→f7).
5. Best move: R1h7# — rook h1→h7, delivers checkmate.

Tactical themes

endgame, mate, mate in 4, queen rook endgame, very long. The combination ends with R1h7# delivering checkmate.

Position data

FEN: r1r1q3/p1p4k/3p1p1p/1p1P1Pp1/5p2/5P2/PPP1Q2R/2K4R b - - 0 29

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