Bb4 vs Bb6 in the 5. e5 d5 6. Bb5 Ne4 7. cxd4 line of the Italian


Bb6 is more ambitious, the bishop might get annoying because it attacked d4, but maybe it will get irrelevant after white plays f4 and f5 and steamrolls, but there too, it has fire against the K on the a7-g1 diagonal.

That's really interesting, I play this line myself as black and I play Bb6 all the time but if white knows his stuff it's hard to get something out of it as black. Imma try Bb4+, think it might be a good move for blitz as it exchanges pieces. Could possibly get black an easier position to play and not waste so much time finding a plan

The "problem" with Bb6 is that if white maintains his center, the bishop on b6 has the potential to become an awful piece. So really you're playing for dynamic counterplay over the next 4-5 moves, like you said.
Don't listen to me, this man is an FM, so its probably the correct verdict.

Don’t listen to me I’m trash but Bb4 looks better long term because of the bishop pair and the bishop being more active, Bb6 looks solid but there isn’t really anywhere it can go unless maybe somehow you can play Ba5 next turn which seems like a waste of 2 moves.
For what it's worth, I took a quick look at Chessbase, and it seems that every world class GM (Carlsen, Nakamura, So, Grischuk, Kramnik) chose Bb6 in that variation

Mainline? what sort of excuse of an opening is that?! Evan's gambit all day everyday
If you want help, I wouldn't recommend putting this stuff on the forum. Ur better than like 99% of forum people, so what's the use of having weaker players help u

Of course 8...Bb4+ is very playable, but Black may come out with a passive positrion without any specific plan. Sample line:
Of course Black may not lose this one, but it ain't easy, or pleasant to defend.
White's main advantage in such positions is the strong central structure, and the most efficient way to deal with this is a quick and timely ...f6.
By applying pressure against d4, Black provokes Bxc6 (which rarely is a bright idea) or forces white to play some inconvenient move.
My opinion is that 8...Bb6 is by far the better move.
It would be more interesting to ask which move is preferable aginst 7.Be2!?. Here the correct answer is most probably none of them, as 7...d3! seems preferrable to 7...Ne4.

The problem (as I understand it) is that black needs to find dynamic counterplay against white's strong center. Bb4+ forces piece trades and helps white develop, thus making it easier for him to consolidate.
Pretty much this, indeed.

7. Be2 is quite a novel move
Yes indeed.
Schlechter used the move as white a few years later against Reti (the game ended in a draw).