Chess puzzle (Equality)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 exd4 6. Nxd4 Bd7 7. Bg5 Be7 8.
Nc3 a6 9. Bc4 O-O 10. h3 h6 11. Bh4 Nxe4 12. Bxe7 Nxc3 13. Bxd8 *
Position (FEN): r2B1rk1/1ppb1pp1/p1np3p/8/2BN4/2n4P/PPP2PP1/R2Q1RK1 b - - 0 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1877
Best move: Nxd1