Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 e6 3. c3 d5 4. e5 d4 5. c4 Nc6 6. Bd3 Qc7 7. Qe2 Nge7 8. O-O
Ng6 9. Re1 Nf4 10. Qe4 Nxd3 11. Qxd3 Nb4 12. Qb3 a5 13. a4 g6 14. Na3 Bd7 15.
d3 Bg7 16. Bf4 O-O 17. Rad1 Bc6 18. Re2 Rae8 19. Nd2 f6 20. Nb5 Bxb5 21. cxb5
b6 22. Nc4 Kh8 23. Nd6 fxe5 24. Nxe8 Rxe8 25. Bg3 Qd6 26. f4 *
Position (FEN): 4r2k/6bp/1p1qp1p1/pPp1p3/Pn1p1P2/1Q1P2B1/1P2R1PP/3R2K1 b - - 0 26
Black to move.
Themes:  Middlegame  
Puzzle rating: 1082
Best move: exf4