Chess Puzzle #DehX4 — Advanced, Black to move, endgame

Position

White: king e3; rook e2; bishop g5; pawns a2/h4. Black: king g6; rook c8; pawns a7/b3. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: a3 — pawn a2→a3. Now Black to move.
2. Best move: Re8+ — rook c8→e8, gives check. Opponent replies Kd2 (king e3→d2).
3. Best move: Rxe2+ — rook e8→e2, captures rook, gives check. Opponent replies Kxe2 (king d2→e2, captures rook).
4. Best move: b2 — pawn b3→b2. Opponent replies Kd3 (king e2→d3).
5. Best move: b1=Q+ — pawn b2→b1, promotes to queen, gives check.

Tactical themes

advanced pawn, crushing, endgame, exposed king, promotion, very long. The key move Rxe2+ captures with check, forcing a response.

Position data

FEN: 2r5/p7/6k1/6B1/7P/1p2K3/P3R3/8 w - - 0 48

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