Chess Puzzle #m8yzp — Expert, Black to move, endgame

Position

White: king b1; queen g4; bishop f1; pawn a4. Black: king b4; queen e3; bishop d4. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qd1 — queen g4→d1. Now Black to move.
2. Best move: Qc3 — queen e3→c3. Opponent replies Qe2 (queen d1→e2).
3. Best move: Qb3+ — queen c3→b3, gives check. Opponent replies Kc1 (king b1→c1).
4. Best move: Be3+ — bishop d4→e3, gives check. Opponent replies Qxe3 (queen e2→e3, captures bishop).
5. Best move: Qxe3+ — queen b3→e3, captures queen, gives check.

Tactical themes

crushing, endgame, exposed king, quiet move, very long. The key move Qxe3+ captures with check, forcing a response.

Position data

FEN: 8/8/8/8/Pk1b2Q1/4q3/8/1K3B2 w - - 18 64

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