Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_OKelly_Variation
Moves: 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5 5. Nf3 Nc6 6. Nc3 Nf6 7. Bg5 Be7 8.
Bc4 O-O 9. O-O b5 10. Bd5 Nxd5 11. Bxe7 Ndxe7 12. Nd5 Bb7 13. b3 Nxd5 14. exd5
Ne7 15. Nxe5 Nxd5 16. c4 bxc4 17. bxc4 Nc3 18. Qd3 Qg5 19. Nf3 Ne4 *
Position (FEN): r4rk1/1b1p1ppp/p7/6q1/2P1n3/3Q1N2/P4PPP/R4RK1 w - - 5 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1297
Best move: Nxg5