Chess Puzzle #YjXZE — Advanced, White to move, endgame

Position

White: king h1; queen a6; pawns a4/c4/g3/h4. Black: king h8; queen f2; bishop d4; pawns c7/g7/h6. Black is ahead by 2 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Qxg3 — queen f2→g3, captures pawn. Now White to move.
2. Best move: Qa8+ — queen a6→a8, gives check. Opponent replies Kh7 (king h8→h7).
3. Best move: Qe4+ — queen a8→e4, gives check. Opponent replies Qg6 (queen g3→g6).
4. Best move: Qxd4 — queen e4→d4, captures bishop.

Tactical themes

endgame, equality, fork, long. The key move is Qa8+.

Position data

FEN: 7k/2p3p1/Q6p/8/P1Pb3P/6P1/5q2/7K b - - 1 39

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