Chess Puzzle #dbjlC — Advanced, White to move, opening

Position

White: king e1; queen d1; rooks a1/h1; bishops d6/e2; knight b5; pawns a2/b2/c4/d3/f2/g2/h2. Black: king g8; queen e8; rooks a8/f8; bishops c8/e7; knight g6; pawns a7/b7/c5/d5/e6/f7/g7/h7. Black is ahead by 1 point of material. White to move.

Solution (3 moves)

1. Opponent setup: a6 — pawn a7→a6. Now White to move.
2. Best move: Nc7 — knight b5→c7. Opponent replies Qd7 (queen e8→d7).
3. Best move: Bxe7 — bishop d6→e7, captures bishop. Opponent replies Qxc7 (queen d7→c7, captures knight).
4. Best move: Bxf8 — bishop e7→f8, captures rook.

Tactical themes

equality, fork, long, opening, trapped piece. The key move is Nc7.

Position data

FEN: r1b1qrk1/pp2bppp/3Bp1n1/1Npp4/2P5/3P4/PP2BPPP/R2QK2R b KQ - 1 13

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