Chess Puzzle #QUDJA — Advanced, Black to move, middlegame

Position

White: king g1; rook b7; knight c6; pawns a4/d7/e3/f2/g2/h2. Black: king f8; rook a8; bishop d8; pawns a5/e6/f6/f7/h7. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Rb8 — rook b7→b8. Now Black to move.
2. Best move: Rxb8 — rook a8→b8, captures rook. Opponent replies Nxb8 (knight c6→b8, captures rook).
3. Best move: Ke7 — king f8→e7. Opponent replies Nc6+ (knight b8→c6, gives check).
4. Best move: Kxd7 — king e7→d7, captures pawn. Opponent replies Nxd8 (knight c6→d8, captures bishop).
5. Best move: Kxd8 — king d7→d8, captures knight.

Tactical themes

endgame, equality, very long. The key move Rxb8 wins material.

Position data

FEN: r2b1k2/1R1P1p1p/2N1pp2/p7/P7/4P3/5PPP/6K1 w - - 3 35

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