Chess Puzzle #8nmkK — Advanced, Black to move, middlegame

Position

White: king b1; queen e3; knight e7; pawns a3/b2/c2/e4/f3/g2. Black: king g7; rook h8; bishop b7; knight d4; pawns b3/b5/d6/e5/f7/g5. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: cxb3 — pawn c2→b3, captures pawn. Now Black to move.
2. Best move: Rh1+ — rook h8→h1, gives check. Opponent replies Ka2 (king b1→a2).
3. Best move: Ra1+ — rook h1→a1, gives check. Opponent replies Kxa1 (king a2→a1, captures rook).
4. Best move: Nc2+ — knight d4→c2, gives check. Opponent replies Kb1 (king a1→b1).
5. Best move: Nxe3 — knight c2→e3, captures queen.

Tactical themes

advantage, attraction, endgame, fork, sacrifice, very long. The key move is Rh1+.

Position data

FEN: 7r/1b2Npk1/3p4/1p2p1p1/3nP3/Pp2QP2/1PP3P1/1K6 w - - 0 27

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