If you search the forums for 'petrov' and 'petroff', you will find so much info :) hope it helps
Petroff Defense
Thanks to 'fiveofswords' and 'petrip'! I appreciate your insight. I had a large book on the Petroff but, I got lost in it trying to find some play! I know also that a number of years ago a world championship match was centered around the opening. But it seems that only Grandmasters do well (like in the Philidor)! Maybe I will try it again using a different approach!

If this gives you an idea about the Petroff, I started all 5 of my games as Black in the US Open two weeks ago with 1.e4 e5 2.Nf3 Nf6, and nobody even dared to play the Petroff Proper, if that tells you what White thinks about it. I faced the following:
Round 1 - 1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d3 Nf6 6.Be2 and only later on she played d4 - Kinda a bad version of the Exchange French for White - She was 1369, I won
Round 3 - 1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.Bb5 Nd4 5.O-O Nxb5 6.Nxb5 - A bad version of the Four Knights Game for White - He was 1696, I won
Round 5 - 1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d3 Nf6 6.d4 d5 - A direct transposition to the Exchange French - He was 2165, I won
Round 7 - 1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.Bb5 Nd4 5.Ba4 Bc5 6.Nxe5 - A highly theoretical Four Knights Game - He was 2252, I won
Round 9 - 1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.Bb5 Nd4 5.Ba4 Nxf3 6.Qxf3 - A simpler line of the Four Knights Game - He was 2324, We drew.
If you know the Petroff Proper, you would realize it's not as drawish as people make it out to be. You have to be able to handle symmetrical pawn structures with an open e-file. That doesn't equate to a draw. This isn't the London System!
I would say that the most stale thing about the forums is irrelevant comments. Perhaps they could be greatly improved by the exalted wisdom of the 1700 players that would enlighten all of us poor ignorant souls!
Countless books make the statement that this defence is super solid, yet.....no one plays it! Also, I have found it difficult to play. Any help here?