Originally posted by tomtom232
I know that 6.Na3 and 6.d3 mainly what is played after this but I have been looking at 6.d4 exd4 7.e5 Qg6 8.Qxd4 and two other lines that start with 6.b3... Namely 6.b3 7.Bb2 8.d4 and 6.b3 Be6 7.Ba3 c5(basically forced) 8.c3 followed by d4 at some point... I have not read up on the Spanish so I don't know if these are already lines that have been explored ...[text shortened]... first line can be called the Spanish exchange Sawyer gambit as it leaves a pawn on c2 hanging.
Well, black seems to score well after 6 b3 Bg4 7 Bb2 f6. If you try 8 d4 (most games seem to continue 8 d3 0-0-0 with a good game for black), then Bxf3 forces you to play gxf3.
Same idea seems to work after 6 b3 Bg4 7 Ba3 c5. You have problems playing d4 because the f3 Knight can't support it.
Still all playable, I imagine and well worth trying to get out of "book" if you so desire.