Originally posted by Sicilian Smaug
4. d4 for white and not d3 was my first thought. But you are asking if that's good for black? - I say there's better out there. Why not just 1...e5 ?
I don't really know what the original poster was asking but here are my thoughts:
1. e4 b6
This move really isn't all that great. Clearly there is better in this position.
2. d4! seems obvious and more to the point, remaining flexible with respect to the f-pawn and your king's knight.
2..b6 3. Nc3 c5
An interesting move, trying to punish White for not playing 2. d4.
This move is really lame. It's blocks in the light squared bishop and just looks bad. 4. d4! looks great for white after 4..cxd4 5. Nxd4. It's just a really bad Sicilian for Black.
I dunno, this looks weird also. It seems like 4..e6 with the idea of 5..d5 is a better plan. Being able to take back with a pawn, and also maybe being able to develop the rest of your pieces and castle are important things in this position.
5. exd5 Nf6
This may be an ok move but it seems to me after 6. d4! White has a large advantage. After:
6. d4! Bxd5?
White is winning since he can't recapture on account of Bb5+, winning. For example:
7..dxc5 8. Bb5+ Bc6 9. Qxd8+ Kxd8 10. Ne5!
So then on to 6..Nxd5:
6. d4! Nxd5
7. Bb5+ Bc6
If 7..Nc6 8. Ne5! and if 7..Nd7 8. Nxd5 Bxd5 9. Ne5!
8. Ne5 Bxb5 9. Qf3! f6 10. Nxb5 fxe5 11. c4!
This looks pretty good for white, but maybe not completely hopeless for black.