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

Position

White: king h1; queen f7; rook f1; bishop g5; pawns a3/b2/c3/g2/h4. Black: king h8; queen e4; rook e8; knight h5; pawns a6/b6/c5/g6/h7. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: Bh6 — bishop g5→h6. Now Black to move.
2. Best move: Ng3+ — knight h5→g3, gives check. Opponent replies Kg1 (king h1→g1).
3. Best move: Ne2+ — knight g3→e2, gives check. Opponent replies Kf2 (king g1→f2).
4. Best move: Qxh4+ — queen e4→h4, captures pawn, gives check. Opponent replies g3 (pawn g2→g3).
5. Best move: Qxg3# — queen h4→g3, captures pawn, delivers checkmate.

Tactical themes

endgame, fork, mate, mate in 4, very long. The combination ends with Qxg3# delivering checkmate.

Position data

FEN: 4r2k/5Q1p/pp4p1/2p3Bn/4q2P/P1P5/1P4P1/5R1K w - - 1 30

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