What is the best continuation for Black?

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soitgoes317 (1755) vs. john2001plus (1876)

1 2 3 4 5 6 7 8 h g f e d c b a +3

(black to move) 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nxc6 bxc6 8. e5 Ng8 9. f4 d6 10. Qf3 dxe5 11. Qxc6+ Bd7 12. Qd5 exf4 13. Bc4 e6 14. Qf3 fxe3 15. O-O Nf6 16. Ne4 e2 17. Bxe2 Rc8 18. Nxf6+ Bxf6 19. Qxf6 Qxf6 20. Rxf6 Rxc2

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