Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nc3 Bb4 7. Bd2 Nc6 8. Nf3
Bxc3 9. bxc3 O-O 10. Bd3 a6 11. Bxh7+ Kxh7 12. Ng5+ Kg6 13. Qg4 f5 14. exf6
Nxf6 15. Qg3 Nh5 16. Qd3+ Kf6 17. Nh7+ Ke7 18. Qg6 Qe8 19. Bg5+ Kd6 *
Position (FEN): r1b1qr2/1p1p2pN/p1nkp1Q1/6Bn/3P4/2P5/P4PPP/R3K2R w KQ - 10 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1638
Best move: Nxf8