Chess Puzzle #G6EpA — Advanced, White to move, middlegame

Position

White: king h1; queen f1; rooks a8/e5; pawns b4/c3/f2/h2. Black: king b8; queen f3; rook g8; knight g2; pawns b6/e6/f7/h6. White is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Kxa8 — king b8→a8, captures rook. Now White to move.
2. Best move: Qa6+ — queen f1→a6, gives check. Opponent replies Kb8 (king a8→b8).
3. Best move: Qxb6+ — queen a6→b6, captures pawn, gives check. Opponent replies Qb7 (queen f3→b7).
4. Best move: Qd6+ — queen b6→d6, gives check. Opponent replies Qc7 (queen b7→c7).
5. Best move: Rb5+ — rook e5→b5, gives check.

Tactical themes

crushing, endgame, exposed king, pin, very long. The key move Qxb6+ captures with check, forcing a response.

Position data

FEN: Rk4r1/5p2/1p2p2p/4R3/1P6/2P2q2/5PnP/5Q1K b - - 1 31

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