Last year I was working with some german IM's on the Qd3 line of the Veresov. Our (or rather their) conclusion was that the combination of an early h6 and c6, as mentioned by Topnotch, gives black easy play and easily the better chances if white doesnt know what to do.
The critical line runs 1. d4 d5 2. Nc3 Nf6 3. Bg5 Nbd7 4. Qd3 h6! (4....c5 scored very well in correspondence chess, but as both Vaganian and Hector showed in recent games, 5.0-0-0 is quite ok for white) 5. Bh4 (Bd2 doesnt make sense because of c5 or even e5) 5....c6! 6.Nf3 Qa5! 7. Nd2 (with the idea of e4; 7.0-0-0 leads to a "strategically clearly superior position for black", as the IM's said, after 7....e6 with the idea of Bb4) 7....e5 and black is probably a little better in a complicated position.
White can, however, vary his moveorder a little bit and play 4. Nf3 Now after 4....h6 5.Bh4 c6 he can simply play e3 and Black has chosen a very passive setup against the Veresov. On the other hand, after 4....c6 5.Qd3 (there are subtleties, why e3 is not that good here. If someone is interested, I can post them, but it will be a long post) 5....h6 and now 6. Bd2! is the move to play, when white may not be better objectively, but he has a sound position with e4 to come. Of course in case of Nf3 white has to play the gambit lines after 4....e6 5.e4 h6 6.Bh4g5, but as far as I know, they are not refuted...
I am interested in working out a Veresov-repertoire for white, knowing that it wont lead to an advantage for the first player. But there are ways to make black feel uncomfortable, and as a Chigorin player, I have to play these positions anyway against white queens pawns openings...
Would be great if someone would join with his thoughts and analysis...
Yours, Pio
I think that the gambit lines after 4.Nf3 e6 5.e4 h6 6.Bh4 g5 are not to convincing:
In the 9.Ne5 variation 9...h5! looks very good for black: 10.h4 g4 11. Qe2 Nxe5 12. dxe5 Qd4!
On 9.Nd2 f5!? and i don't see what to do with white...