Chess Puzzle #CKRgs — Master, White to move, middlegame

Position

White: king b3; bishop f4; pawns a4/d4/e5/h4. Black: king a5; bishop f8; pawns b4/e6/f5/g4/h5. Black is ahead by 1 point of material. White to move.

Solution (4 moves)

1. Opponent setup: Bg7 — bishop f8→g7. Now White to move.
2. Best move: d5 — pawn d4→d5. Opponent replies g3 (pawn g4→g3).
3. Best move: Bxg3 — bishop f4→g3, captures pawn. Opponent replies exd5 (pawn e6→d5, captures pawn).
4. Best move: Bf4 — bishop g3→f4. Opponent replies Kb6 (king a5→b6).
5. Best move: a5+ — pawn a4→a5, gives check.

Tactical themes

bishop endgame, crushing, endgame, quiet move, very long. The key move is d5.

Position data

FEN: 5b2/8/4p3/k3Pp1p/Pp1P1BpP/1K6/8/8 b - - 3 41

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