Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb3 Nf6 6. Nc3 Bb4 7. Bg5 h6 8.
Bxf6 Qxf6 9. a3 Bxc3+ 10. bxc3 d6 11. Bc4 O-O 12. O-O Rd8 13. Nc1 Be6 14. Bb3
Ne7 15. c4 Rac8 16. Qd3 Ng6 17. Ne2 h5 18. a4 h4 19. a5 h3 20. g3 Bg4 21. f3
Be6 22. Rf2 Rc6 23. Ra4 Rdc8 24. Nc3 a6 25. Nd5 Qg5 26. Rb4 Nf4 27. Nxf4 *
Position (FEN): 2r3k1/1p3pp1/p1rpb3/P3p1q1/1RP1PN2/1B1Q1PPp/2P2R1P/6K1 b - - 0 27
Black to move.
Themes:  Middlegame  
Puzzle rating: 1297
Best move: exf4