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

Position

White: king b2; rook d6; pawns a3/b7/g3/h3. Black: king g5; rook g1; pawns d2/e3/f5/g6/h5. Black is ahead by 1 point of material. White to move.

Solution (3 moves)

1. Opponent setup: e2 — pawn e3→e2. Now White to move.
2. Best move: b8=Q — pawn b7→b8, promotes to queen. Opponent replies Rb1+ (rook g1→b1, gives check).
3. Best move: Kxb1 — king b2→b1, captures rook. Opponent replies d1=Q+ (pawn d2→d1, promotes to queen, gives check).
4. Best move: Kb2 — king b1→b2.

Tactical themes

advanced pawn, defensive move, endgame, equality, long, promotion. The key move is b8=Q.

Position data

FEN: 8/1P6/3R2p1/5pkp/8/P3p1PP/1K1p4/6r1 b - - 2 48

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