Chess Puzzle #AXq4Z — Advanced, White to move, endgame

Position

White: king g2; queen e3; pawn g3. Black: king e6; rook e8; bishop e5; pawns c5/d6/g4/g7. Black is ahead by 2 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Kd5 — king e6→d5. Now White to move.
2. Best move: Qb3+ — queen e3→b3, gives check. Opponent replies c4 (pawn c5→c4).
3. Best move: Qb5+ — queen b3→b5, gives check. Opponent replies Kd4 (king d5→d4).
4. Best move: Qxe8 — queen b5→e8, captures rook.

Tactical themes

crushing, endgame, fork, long. The key move is Qb3+.

Position data

FEN: 4r3/6p1/3pk3/2p1b3/6p1/4Q1P1/6K1/8 b - - 5 46

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