Chess Puzzle #lKmjL — Expert, Black to move, middlegame

Position

White: king g1; rook a8; pawns a6/f2/g2/h3. Black: king d7; knight b6; pawns c4/e5/f4/g6/h7. White is ahead by 1 point of material. Black to move.

Solution (5 moves)

1. Opponent setup: Rb8 — rook a8→b8. Now Black to move.
2. Best move: c3 — pawn c4→c3. Opponent replies a7 (pawn a6→a7).
3. Best move: c2 — pawn c3→c2. Opponent replies Rb7+ (rook b8→b7, gives check).
4. Best move: Kc6 — king d7→c6. Opponent replies Rxb6+ (rook b7→b6, captures knight, gives check).
5. Best move: Kxb6 — king c6→b6, captures rook. Opponent replies a8=Q (pawn a7→a8, promotes to queen).
6. Best move: c1=Q+ — pawn c2→c1, promotes to queen, gives check.

Tactical themes

advanced pawn, defensive move, endgame, equality, promotion, very long. The key move is c3.

Position data

FEN: R7/3k3p/Pn4p1/4p3/2p2p2/7P/5PP1/6K1 w - - 0 45

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