Chess Puzzle #htVj9 — Expert, Black to move, endgame

Position

White: king c6; rook c7; pawns c5/g2. Black: king g5; knight c4; pawns b4/f5/h5. White is ahead by 1 point of material. Black to move.

Solution (6 moves)

1. Opponent setup: Rb7 — rook c7→b7. Now Black to move.
2. Best move: Na5+ — knight c4→a5, gives check. Opponent replies Kd5 (king c6→d5).
3. Best move: Nxb7 — knight a5→b7, captures rook. Opponent replies c6 (pawn c5→c6).
4. Best move: Nd6 — knight b7→d6. Opponent replies Kxd6 (king d5→d6, captures knight).
5. Best move: b3 — pawn b4→b3. Opponent replies c7 (pawn c6→c7).
6. Best move: b2 — pawn b3→b2. Opponent replies c8=Q (pawn c7→c8, promotes to queen).
7. Best move: b1=Q — pawn b2→b1, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, fork, promotion, quiet move, very long. The key move is Na5+.

Position data

FEN: 8/2R5/2K5/2P2pkp/1pn5/8/6P1/8 w - - 0 47

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