Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 e6 5. Nf3 b6 6. Bd3 Nb4 7. Bb5 a6 8. Ba4
Bb7 9. a3 b5 10. Bb3 Nc6 11. Nc3 b4 12. axb4 Bxb4 13. O-O Nf6 14. e5 Nd5 15.
Ne4 Na5 16. Ba4 Nb6 17. Bd2 Bxe4 18. Bxb4 Bxf3 *
Position (FEN): r2qk2r/3p1ppp/pn2p3/n3P3/BB1P4/5b2/1P3PPP/R2Q1RK1 w kq - 0 19
White to move.
Themes:  Middlegame  
Puzzle rating: 999
Best move: Qxf3