What is the best continuation for Black?

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Gusev (1805) vs. john2001plus (1944)

1 2 3 4 5 6 7 8 h g f e d c b a 0

(black to move) 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 c5 5. cxd5 exd5 6. Nc3 Nc6 7. Bb5 Bg4 8. dxc5 Bxc5 9. O-O O-O 10. a3 Re8 11. Bxc6 bxc6 12. h3 Bh5 13. Qa4 Bxf3 14. gxf3 Qd7 15. Qh4 Be7 16. Qg3 Bd6 17. Qg2 a5 18. Kh1 Re5 19. f4 Rh5 20. Kh2 g5 21. Rg1 Kh8 22. f3 Rg8 23. Qf1 gxf4 24. Rxg8+ Kxg8 25. Qg2+ Kf8 26. exf4 Qf5 27. Be3 d4 28. Bxd4 Qxf4+

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