Chess puzzle (Advantage)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 h6 5. a3 Nbd7 6. e3 b6 7. Be2 Bb7 8. O-O
Be7 9. Bd3 c5 10. cxd5 Nxd5 11. e4 Nxc3 12. bxc3 O-O 13. Bf4 Nf6 14. Re1 cxd4
15. cxd4 a6 16. Rc1 Rc8 17. Bb1 Bxa3 18. Rxc8 Qxc8 19. Qd3 Bb4 20. Rc1 Qa8 21.
e5 Be4 22. Qb3 Bxb1 *
Position (FEN): q4rk1/5pp1/pp2pn1p/4P3/1b1P1B2/1Q3N2/5PPP/1bR3K1 w - - 0 23
White to move.
Themes:  Middlegame  
Puzzle rating: 1803
Best move: exf6