Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_McDonnell_Attack
Moves: 1. e4 c5 2. f4 Nc6 3. Nf3 e6 4. d3 h6 5. Nc3 Bd6 6. Be2 Bc7 7. O-O Nge7 8. Be3
d5 9. Bxc5 dxe4 10. dxe4 Qxd1 11. Raxd1 O-O 12. Nd4 Nxd4 13. Bxd4 Nc6 14. f5 *
Position (FEN): r1b2rk1/ppb2pp1/2n1p2p/5P2/3BP3/2N5/PPP1B1PP/3R1RK1 b - - 0 14
Black to move.
Themes:  Middlegame  
Puzzle rating: 1267
Best move: Nxd4