Chess Puzzle #Jk8gd — Expert, White to move, middlegame

Position

White: king a3; queen c5; rooks d1/d7; pawns b5/c3/h5. Black: king b8; queen g4; rooks c8/e8; pawns a6/b7/c7/e4/h6. Black is ahead by 2 points of material. White to move.

Solution (5 moves)

1. Opponent setup: a5 — pawn a6→a5. Now White to move.
2. Best move: b6 — pawn b5→b6. Opponent replies cxb6 (pawn c7→b6, captures pawn).
3. Best move: Qxb6 — queen c5→b6, captures pawn. Opponent replies Rxc3+ (rook c8→c3, captures pawn, gives check).
4. Best move: Kb2 — king a3→b2. Opponent replies Qg2+ (queen g4→g2, gives check).
5. Best move: R1d2 — rook d1→d2. Opponent replies Qxd2+ (queen g2→d2, captures rook, gives check).
6. Best move: Rxd2 — rook d7→d2, captures queen.

Tactical themes

advantage, endgame, very long. The key move is b6.

Position data

FEN: 1kr1r3/1ppR4/p6p/1PQ4P/4p1q1/K1P5/8/3R4 b - - 0 45

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