Chess Puzzle #M5Hu3 — Master, Black to move, middlegame

Position

White: king b1; queen g4; rook h1; bishop d3; pawns a3/c2/d5/f2/g2/h2. Black: king b8; queen f6; bishops b2/g6; pawns a7/b7/c7/h7. White is ahead by 4 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Bxg6 — bishop d3→g6, captures bishop. Now Black to move.
2. Best move: Bxa3 — bishop b2→a3, captures pawn. Opponent replies c3 (pawn c2→c3).
3. Best move: Qxf2 — queen f6→f2, captures pawn. Opponent replies Bc2 (bishop g6→c2).
4. Best move: Qb6+ — queen f2→b6, gives check. Opponent replies Qb4 (queen g4→b4).
5. Best move: Bxb4 — bishop a3→b4, captures queen.

Tactical themes

advantage, endgame, very long. The key move Bxa3 wins material.

Position data

FEN: 1k6/ppp4p/5qb1/3P4/6Q1/P2B4/1bP2PPP/1K5R w - - 0 21

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