What is the best move for White?

Casual Game, https://itsyourturn.com
Analysis of John Coffey vs. Peter

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

(white to move) 1. Nf3 d6 2. e4 e5 3. d4 Bg4 4. Be3 exd4 5. Qxd4 Nc6 6. Qd2 Qf6 7. Nd4 Nxd4 8. Bxd4 Qe6 9. Nc3 c6 10. f3 Bh5 11. O-O-O b5 12. Nxb5 cxb5 13. Bxb5+ Ke7 14. e5 h6 15. exd6+ Kxd6 16. Qf4+ Kd5 17. c4#

[ Flip the board | Reset | Options… ] Play chess online

 

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

 

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight