Chess Puzzle #IuiZ2 — Advanced, Black to move, middlegame

Position

White: king g1; queen f6; bishop d3; pawns b2/b4/d4/f2/g4/h4. Black: king g8; rooks c8/g7; bishop b7; pawns a7/b6/d7/e6/g6/h5. Black is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Bxg6 — bishop d3→g6, captures pawn. Now Black to move.
2. Best move: Rc1+ — rook c8→c1, gives check. Opponent replies Kh2 (king g1→h2).
3. Best move: Rh1+ — rook c1→h1, gives check. Opponent replies Kg3 (king h2→g3).
4. Best move: Rg1+ — rook h1→g1, gives check. Opponent replies Kf4 (king g3→f4).
5. Best move: Rxg4+ — rook g1→g4, captures pawn, gives check.

Tactical themes

advantage, endgame, very long. The key move Rxg4+ captures with check, forcing a response.

Position data

FEN: 2r3k1/pb1p2r1/1p2pQp1/7p/1P1P2PP/3B4/1P3P2/6K1 w - - 1 30

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