Chess Puzzle #Ki5qG — Expert, White to move, middlegame

Position

White: king a3; queen d5; rook e4; pawns a2/c2/d4/e3/g6. Black: king b7; queen e1; rook c6; knight d7; pawns a6/b5/c3/g7/h6. Black is ahead by 3 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Nb6 — knight d7→b6. Now White to move.
2. Best move: Re7+ — rook e4→e7, gives check. Opponent replies Kb8 (king b7→b8).
3. Best move: Qxc6 — queen d5→c6, captures rook. Opponent replies Qc1+ (queen e1→c1, gives check).
4. Best move: Kb4 — king a3→b4. Opponent replies Qb2+ (queen c1→b2, gives check).
5. Best move: Kc5 — king b4→c5.

Tactical themes

advantage, deflection, endgame, pin, very long. The key move is Re7+.

Position data

FEN: 8/1k1n2p1/p1r3Pp/1p1Q4/3PR3/K1p1P3/P1P5/4q3 b - - 1 47

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