Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Other_variations
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nc6 5. Bb5 Bd7 6. Nc3 e5 7. Nf3 Nf6 8.
Bg5 Be7 9. O-O O-O 10. a3 a6 11. Be2 Nh5 12. Qd2 Bxg5 13. Nxg5 Nf4 14. Nf3 Qf6
15. Nd5 Nxd5 16. Qxd5 Qg6 17. Rfd1 Bh3 18. Bf1 Rad8 19. Rd3 *
Position (FEN): 3r1rk1/1p3ppp/p1np2q1/3Qp3/4P3/P2R1N1b/1PP2PPP/R4BK1 b - - 6 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1910
Best move: Be6