Chess puzzle (Advantage)
Moves: 1. e4 Nc6 2. d4 e5 3. d5 Nce7 4. c4 Ng6 5. Bd3 Nf6 6. Ne2 Bb4+ 7. Nbc3 Bxc3+ 8.
bxc3 O-O 9. O-O h6 10. f4 exf4 11. Nxf4 Nxf4 12. Bxf4 d6 13. Qe1 Ng4 14. h3 Nf6
15. Qf2 Nh5 16. Be3 Qf6 17. Qe2 Qg6 18. Rae1 Ng3 19. Qf3 Nxf1 20. Rxf1 Qf6 *
Position (FEN): r1b2rk1/ppp2pp1/3p1q1p/3P4/2P1P3/2PBBQ1P/P5P1/5RK1 w - - 1 21
White to move.
Themes:  Middlegame  
Puzzle rating: 1447
Best move: Qxf6