Before the great deletion, there was a thread on the Morra where a few people showed that white does indeed get compensation in all lines with correct play. I tried cracking a few of his lines but they all seem to hold - if we ever get the old threads back then this one definitely makes for good viewing.
My personal opinion is that the morra gambit gives compensation for the pawn, possibly even enough compensation, but that other lines are better (though, as I've said elsewhere, I don't think the Open is the strongest continuation. On the subject of the 2150, I suppose I should mention he also plays the latvian from time to time ("when he's happy with the draw"), and a number of gambits as white. So, on his scale, I suppose he genuinely believes that the morra is stronger than the open sicilian, and I certainly don't believe it to be much worse myself. To clarify my feelings, I think that objectively after 3.d4 white's advantage is probably exhausted (note, this is personal opinion, not a solution to the problem 1...c5 + 3. d4 = ?), whereas the morra is objectively, theoretically and practically unclear, and therefore makes an excellent weapon.
I must confess that it's not a line I play against often, but I'd give serious consideration to 7.e5 in this line, which looks fun at least (whether it's sound or not is not something I've given due thought to, since at the level I play ideas like this do not have to be sound). However, in the line you mentioned (although I do not believe Bg5 is the correct move, I think white should just castle and get on with his plan of Qe2, Rd1 etc), I would maintain that white has small compensation for the pawn, even if it is indeed insufficient.
I'd be interested to see what the Palkovi book on the Morra says (I've still not gottena round to buying it, or indeed any openings book of the last two to three years except the SOS series) - I seem to remember hearing that it had some nice ideas in this variation.
Regards, Craig
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