What is the best move for Black?

Blitz:5'+2, Greenwood
Analysis of Braden (1800) vs. Coffey (2016)

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

(black to move) 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Qb6 8. a3 cxd4 9. Nxd4 Nxd4 10. Bxd4 Bc5 11. Na4 Qa5+ 12. b4 Qxa4 13. Bxc5 Nxc5 14. bxc5 Qxf4 15. Bb5+ Bd7 16. Bxd7+ Kxd7 17. Qe2 Qh4+ 18. g3 Qe4 19. Qxe4 dxe4 20. O-O-O+ Ke7 CHECK!

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Pawn promotion:
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