Chess Puzzle #a6xeG — Advanced, Black to move, middlegame

Position

White: king h2; knights f5/g3; pawns b2/d4/e5/g4. Black: king h8; knights b6/e6; pawns b4/c3/d5. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: bxc3 — pawn b2→c3, captures pawn. Now Black to move.
2. Best move: b3 — pawn b4→b3. Opponent replies Nf1 (knight g3→f1).
3. Best move: Nc4 — knight b6→c4. Opponent replies Nd6 (knight f5→d6).
4. Best move: b2 — pawn b3→b2. Opponent replies Nxc4 (knight d6→c4, captures knight).
5. Best move: b1=Q — pawn b2→b1, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, knight endgame, master, promotion, very long. The key move is b3.

Position data

FEN: 7k/8/1n2n3/3pPN2/1p1P2P1/2p3N1/1P5K/8 w - - 0 41

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