Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Sozin
Moves: 1. e4 c5 2. Bc4 Nc6 3. Ne2 Nf6 4. d4 d6 5. Nbc3 cxd4 6. Nxd4 a6 7. Nxc6 bxc6 8.
Qf3 e6 9. e5 Nd5 10. exd6 Bxd6 11. Nxd5 cxd5 12. O-O *
Position (FEN): r1bqk2r/5ppp/p2bp3/3p4/2B5/5Q2/PPP2PPP/R1B2RK1 b kq - 1 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1810
Best move: Qh4