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

Position

White: king g1; queen c6; rooks a1/f1; bishop c1; pawns a2/b2/c3/d4/e4/g2/h2. Black: king g8; queen h4; rooks a8/f8; bishops f4/f5; pawns a7/c7/e6/g7/h6. Black is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Rxf4 — rook f1→f4, captures bishop. Now Black to move.
2. Best move: Qe1+ — queen h4→e1, gives check. Opponent replies Rf1 (rook f4→f1).
3. Best move: Qxf1+ — queen e1→f1, captures rook, gives check. Opponent replies Kxf1 (king g1→f1, captures queen).
4. Best move: Bxe4+ — bishop f5→e4, captures pawn, gives check. Opponent replies Kg1 (king f1→g1).
5. Best move: Bxc6 — bishop e4→c6, captures queen.

Tactical themes

advantage, discovered attack, kingside attack, middlegame, sacrifice, very long. The key move Qxf1+ captures with check, forcing a response.

Position data

FEN: r4rk1/p1p3p1/2Q1p2p/5b2/3PPb1q/2P5/PP4PP/R1B2RK1 w - - 0 21

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