Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. Bg5 Be7 6. Nc3 O-O 7. a3 Be6 8. Rb1
Ng4 9. Bxe7 Qxe7 10. O-O a6 11. Bc4 Bxc4 12. dxc4 Qd7 13. Nd5 f5 14. exf5 Rxf5
15. Nh4 Rh5 16. g3 Rg5 17. f4 exf4 18. Rxf4 Nge5 19. Nf3 Rg6 20. Nxe5 Nxe5 21.
Ne3 Re6 22. Qd4 Ng6 23. Rf2 Rae8 24. Nd5 Qc6 25. Rbf1 Re4 26. Nf6+ *
Position (FEN): 4r1k1/1pp3pp/p1qp1Nn1/8/2PQr3/P5P1/1PP2R1P/5RK1 b - - 11 26
Black to move.
Themes:  Middlegame  
Puzzle rating: 1166
Best move: gxf6