Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e6 7. Bg5 Be7 8. O-O
O-O 9. Qf3 Nbd7 10. Qh3 h6 11. Qg3 *
Position (FEN): r1bq1rk1/1p1nbpp1/p2ppn1p/6B1/3NP3/2NB2Q1/PPP2PPP/R4RK1 b - - 1 11
Black to move.
Themes:  Middlegame  
Puzzle rating: 1635
Best move: hxg5