Chess Puzzle #Bs1sl — Advanced, Black to move, middlegame

Position

White: king c1; queen a6; rook d1; bishops b7/d2; knight a5; pawns a2/b2/c3/e5/f2/g5. Black: king b8; queen c7; rook d8; bishops f5/f8; knight b6; pawns a7/f7/g7. White is ahead by 3 points of material. Black to move.

Solution (2 moves)

1. Opponent setup: Bf4 — bishop d2→f4. Now Black to move.
2. Best move: Qxc3+ — queen c7→c3, captures pawn, gives check. Opponent replies bxc3 (pawn b2→c3, captures queen).
3. Best move: Ba3# — bishop f8→a3, delivers checkmate.

Tactical themes

mate, mate in 2, middlegame, queenside attack, sacrifice, short. The combination ends with Ba3# delivering checkmate.

Position data

FEN: 1k1r1b2/pBq2pp1/Qn6/N3PbP1/8/2P5/PP1B1P2/2KR4 w - - 1 26

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