What is the best line for White?

ICC tourney 1276 (12 3), Internet Chess Club
Analysis of yoshi (1660) vs. drabmolc (1254)

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

(white to move) 1. Nf3 d5 2. d4 c6 3. e3 e6 4. c4 f5 5. Nc3 Nf6 6. Be2 Bd6 7. O-O O-O 8. Ne5 Qe7 9. f4 Nbd7 10. c5 Bc7 11. b4 Ne4 12. Nxe4 fxe4 13. b5 Nxe5 14. fxe5 Bd7 15. Qb3 Rxf1+ 16. Bxf1 Rf8 17. b6 axb6 18. Ba3 Qf7 19. Qb2 b5

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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

Click here for 18. cxd6