Chess puzzle (Advantage)
Moves: 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qb6 6. Nc2 e6 7. a3 Na5 8. e4
Nb3 9. Rb1 Nxc1 10. Qxc1 Bc5 11. Qd2 Ng4 12. Nd1 a5 13. b4 axb4 14. axb4 Ra2
15. Bd3 Ne5 16. O-O Nxd3 17. Qxd3 Be7 18. Nc3 Ra8 19. c5 Qd8 20. e5 O-O 21. Ne4
b6 22. Rfd1 Qc7 23. Qd4 bxc5 24. bxc5 Ra5 25. Nf6+ Kh8 26. Rb3 *
Position (FEN): 2b2r1k/2qpbppp/4pN2/r1P1P3/3Q4/1R6/2N2PPP/3R2K1 b - - 4 26
Black to move.
Themes:  Middlegame  
Puzzle rating: 1556
Best move: gxf6