What is the best continuation for Black?

Casual Game, https://itsyourturn.com
as de pique vs. John Coffey

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

(black to move) 1. e4 e6 2. Nc3 d5 3. d4 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Qb6 9. Bb5 a6 10. Bxc6 bxc6 11. Na4 Qa5+ 12. c3 Qc7 13. Qh5 g6 14. Qe2 c5 15. Nf3 a5 16. O-O-O Ba6 17. Qc2 Bb5 18. h3 Rb8 19. b3 Bxa4 20. bxa4 Nb6 21. Rd3 Nc4

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Options:
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	- use short algebraic notation;
movement/animation speed: (slow) (fast)
	- show legal moves;

 

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight