Chess Puzzle #I7rfg — Advanced, Black to move, endgame

Position

White: king f3; queen b4; pawn a2. Black: king d1; queen e1; pawns a6/b5. Black is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qxe1+ — queen b4→e1, captures queen, gives check. Now Black to move.
2. Best move: Kxe1 — king d1→e1, captures queen. Opponent replies Ke3 (king f3→e3).
3. Best move: Kd1 — king e1→d1. Opponent replies Kd3 (king e3→d3).
4. Best move: Kc1 — king d1→c1. Opponent replies Kc3 (king d3→c3).
5. Best move: a5 — pawn a6→a5.

Tactical themes

crushing, defensive move, endgame, very long. The key move Kxe1 wins material.

Position data

FEN: 8/8/p7/1p6/1Q6/5K2/P7/3kq3 w - - 6 59

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