Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Modern_Variations
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bb5+ Bd7 6. Bxd7+ Nbxd7 7. Nc3 g6
8. O-O Bg7 9. Qf3 a6 10. a3 O-O 11. Bg5 Ne5 12. Qe3 Nc4 13. Qc1 Qb6 14. Nb3
Rac8 15. Nd5 *
Position (FEN): 2r2rk1/1p2ppbp/pq1p1np1/3N2B1/2n1P3/PN6/1PP2PPP/R1Q2RK1 b - - 10 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 1500
Best move: Nxd5