Chess Puzzle #OiHKd — Expert, Black to move, middlegame

Position

White: king g2; queen b7; rooks e1/f2; knight f3; pawns a2/b2/c3/e2/h2. Black: king d6; queen e3; rooks g4/h5; pawns a7/c6/d5/g3. White is ahead by 4 points of material. Black to move.

Solution (5 moves)

1. Opponent setup: hxg3 — pawn h2→g3, captures pawn. Now Black to move.
2. Best move: Rxg3+ — rook g4→g3, captures pawn, gives check. Opponent replies Kxg3 (king g2→g3, captures rook).
3. Best move: Rg5+ — rook h5→g5, gives check. Opponent replies Kh3 (king g3→h3).
4. Best move: Qe6+ — queen e3→e6, gives check. Opponent replies Kh2 (king h3→h2).
5. Best move: Qh6+ — queen e6→h6, gives check. Opponent replies Nh4 (knight f3→h4).
6. Best move: Qxh4# — queen h6→h4, captures knight, delivers checkmate.

Tactical themes

attraction, mate, mate in 5, middlegame, pin, sacrifice, very long. The combination ends with Qxh4# delivering checkmate.

Position data

FEN: 8/pQ6/2pk4/3p3r/6r1/2P1qNp1/PP2PRKP/4R3 w - - 0 34

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