Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin
Moves: 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. Qc2 e5 6. O-O Be7 7. d3 O-O 8. Nbd2
h6 9. Nb3 Bg4 10. d4 cxd4 11. cxd4 Bxf3 12. Bxf3 exd4 13. Rd1 Rc8 14. Qe2 Qb6
15. Nxd4 *
Position (FEN): 2r2rk1/pp2bpp1/1qnp1n1p/8/3NP3/5B2/PP2QPPP/R1BR2K1 b - - 0 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 949
Best move: Nxd4