Chess Puzzle #ZWyNr — Master, Black to move, middlegame

Position

White: king h1; knight b1; pawns a3/c3/e4/f3/h2. Black: king h3; knight e2; pawns b5/c5/e5/f4/h4. Material is balanced. Black to move.

Solution (10 moves)

1. Opponent setup: c4 — pawn c3→c4. Now Black to move.
2. Best move: bxc4 — pawn b5→c4, captures pawn. Opponent replies a4 (pawn a3→a4).
3. Best move: c3 — pawn c4→c3. Opponent replies Na3 (knight b1→a3).
4. Best move: Nd4 — knight e2→d4. Opponent replies a5 (pawn a4→a5).
5. Best move: Nxf3 — knight d4→f3, captures pawn. Opponent replies a6 (pawn a5→a6).
6. Best move: Nxh2 — knight f3→h2, captures pawn. Opponent replies a7 (pawn a6→a7).
7. Best move: f3 — pawn f4→f3. Opponent replies a8=Q (pawn a7→a8, promotes to queen).
8. Best move: f2 — pawn f3→f2. Opponent replies Qc8+ (queen a8→c8, gives check).
9. Best move: Kg3 — king h3→g3. Opponent replies Qg8+ (queen c8→g8, gives check).
10. Best move: Ng4 — knight h2→g4. Opponent replies Qc4 (queen g8→c4).
11. Best move: Ne3 — knight g4→e3.

Tactical themes

advanced pawn, crushing, endgame, knight endgame, very long. The key move bxc4 wins material.

Position data

FEN: 8/8/8/1pp1p3/4Pp1p/P1P2P1k/4n2P/1N5K w - - 0 61

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