Chess Puzzle #F2xrM — Advanced, Black to move, endgame

Position

White: king b5; rook a7; pawn a4. Black: king e5; knight d4; pawns a5/e6/g6. Material is balanced. Black to move.

Solution (5 moves)

1. Opponent setup: Kxa5 — king b5→a5, captures pawn. Now Black to move.
2. Best move: Nc6+ — knight d4→c6, gives check. Opponent replies Kb6 (king a5→b6).
3. Best move: Nxa7 — knight c6→a7, captures rook. Opponent replies Kxa7 (king b6→a7, captures knight).
4. Best move: g5 — pawn g6→g5. Opponent replies a5 (pawn a4→a5).
5. Best move: g4 — pawn g5→g4. Opponent replies a6 (pawn a5→a6).
6. Best move: g3 — pawn g4→g3.

Tactical themes

crushing, endgame, fork, quiet move, very long. The key move is Nc6+.

Position data

FEN: 8/R7/4p1p1/pK2k3/P2n4/8/8/8 w - - 7 54

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