Chess Puzzle #cg8L6 — Expert, White to move, endgame

Position

White: king g3; queen b3; pawns a2/b2/h4. Black: king b7; rooks a1/e6; bishop g6; pawns a7/c2/h7. Black is ahead by 4 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Ka8 — king b7→a8. Now White to move.
2. Best move: Qd5+ — queen b3→d5, gives check. Opponent replies Kb8 (king a8→b8).
3. Best move: Qd8+ — queen d5→d8, gives check. Opponent replies Kb7 (king b8→b7).
4. Best move: Qd7+ — queen d8→d7, gives check. Opponent replies Ka6 (king b7→a6).
5. Best move: Qxe6+ — queen d7→e6, captures rook, gives check.

Tactical themes

endgame, equality, fork, very long. The key move Qxe6+ captures with check, forcing a response.

Position data

FEN: 8/pk5p/4r1b1/8/7P/1Q4K1/PPp5/r7 b - - 8 48

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