RE: In the Petroff,
"5.Nc3 Nxc3 6.dxc3 Be7 7.Bf4 (7.Be3) Nc6 8.Qd2 Be6 9.0-0-0 Bxa2 Kleijn-Van Delft, NEDchT 2008 and Black attacks." Actually, I think White can neutralize the initiative fairly quickly and end up slightly better.
Not to mention he can avoid it in several ways and still retain a small edge.
You might want to check out some of my analysis of this ...Bxa2 idea in the e4-e5 Forum:
http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1222349772 I also wanted to throw in that I recently switched
from the Petroff
to the Caro-Kann.
It reminds of the stock market where one guy buys a certain stock because he thinks its the perfect time and the best stock for the money, while the other guy is thinking "Man, I have GOT to sell this awful stock right now!"
Nietzsche
p.s. -- If someone asked me for a non-theoretical opening to play for a win (because they already have a solid opening).... I would never say the Petroff. It has
loads of "mainline" theory to learn (since many top players use it) and
loads of white sidelines you need to cover if you play 1...e5. Believe me, I have notebooks full of anti-King's Gambit, Anti-Danish, Anti-Scotch, Anti-Two Knights stuff to prove it! And while its super-solid I don't think it offers more winning chances than the Caro-Kann. In fact, it probably offers less in the mainlines. I like the Petroff, but I don't think it fits the request
at all.