Chess Puzzle #exy4k — Advanced, White to move, middlegame

Position

White: king e1; rook b4; bishop e7; pawns d6/g5/h4. Black: king d7; rook c2; bishop g4; pawns b3/e6/g6/h5. Black is ahead by 1 point of material. White to move.

Solution (4 moves)

1. Opponent setup: Rc3 — rook c2→c3. Now White to move.
2. Best move: Rb7+ — rook b4→b7, gives check. Opponent replies Kc8 (king d7→c8).
3. Best move: d7+ — pawn d6→d7, gives check. Opponent replies Kxb7 (king c8→b7, captures rook).
4. Best move: d8=Q — pawn d7→d8, promotes to queen. Opponent replies Rc1+ (rook c3→c1, gives check).
5. Best move: Kf2 — king e1→f2.

Tactical themes

advanced pawn, advantage, defensive move, deflection, endgame, promotion, very long. The key move is Rb7+.

Position data

FEN: 8/3kB3/3Pp1p1/6Pp/1R4bP/1p6/2r5/4K3 b - - 3 45

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