Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Modern_Variations
Moves: 1. e4 c5 2. Nf3 d6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nxd4 6. Qxd4 Nf6 7. Bg5 e5 8.
Qe3 Be6 9. O-O-O Be7 10. Bxf6 Bxf6 11. Nd5 *
Position (FEN): r2qk2r/pp3ppp/3pbb2/3Np3/4P3/4Q3/PPP2PPP/2KR1B1R b kq - 1 11
Black to move.
Themes:  Middlegame  
Puzzle rating: 1992
Best move: Bxd5