Well, you can't play g5 after Re4 but you can go Qf5. After Nd2-Qg6 white need to retreat the rook and black can play f5! It's a complicated drawish line the last time I checked.
I believe that black can still play Qh4 after d3, it's just a little bit different from d4, more tension in the center.
I wanna know your thoughts on this position. How should Black play in this variation. It's a side line for Marshall Gambit.
Engines show that Black continues here with Bf5 ideas without Qh4. I wanted know what are all the ideas and strategies behind that. Ruy lopez players some analysis please.