Chess Puzzle #tQiIS — Master, Black to move, endgame

Position

White: king d3; bishop c5; pawns d5/e4/g5/h5. Black: king f7; bishop e1; pawns a6/b3/e5/f3. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: Ba3 — bishop c5→a3. Now Black to move.
2. Best move: Bb4 — bishop e1→b4. Opponent replies Bb2 (bishop a3→b2).
3. Best move: Bd6 — bishop b4→d6. Opponent replies Ke3 (king d3→e3).
4. Best move: a5 — pawn a6→a5. Opponent replies Kxf3 (king e3→f3, captures pawn).
5. Best move: a4 — pawn a5→a4.

Tactical themes

bishop endgame, crushing, defensive move, endgame, quiet move, very long. The key move is Bb4.

Position data

FEN: 8/5k2/p7/2BPp1PP/4P3/1p1K1p2/8/4b3 w - - 1 45

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