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. Bg5 e6 7. f4 Be7 8. e5
dxe5 9. fxe5 Nd5 10. Bxe7 Nxe7 11. Qg4 Ng6 12. O-O-O Qa5 13. Bd3 Qxe5 *
Position (FEN): rnb1k2r/1p3ppp/p3p1n1/4q3/3N2Q1/2NB4/PPP3PP/2KR3R w kq - 0 14
White to move.
Themes:  Middlegame  
Puzzle rating: 2073
Best move: Bxg6