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

Position

White: king b1; queen a4; rooks e2/g1; knight d4; pawns a2/e5/f4/h5. Black: king f7; queen c1; rooks b8/c8; bishop b4; pawns a6/e6/g7/h7. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: Rxc1 — rook g1→c1, captures queen. Now Black to move.
2. Best move: Ba3+ — bishop b4→a3, gives check. Opponent replies Rb2 (rook e2→b2).
3. Best move: Rxb2+ — rook b8→b2, captures rook, gives check. Opponent replies Ka1 (king b1→a1).
4. Best move: Rxc1# — rook c8→c1, captures rook, delivers checkmate.

Tactical themes

discovered attack, long, mate, mate in 3, middlegame. The combination ends with Rxc1# delivering checkmate.

Position data

FEN: 1rr5/5kpp/p3p3/4P2P/Qb1N1P2/8/P3R3/1Kq3R1 w - - 0 33

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