What well known gambits are unsound?

15...Ng6 is too passive. Whats wrong with 15...Ng4 ?

By White advantage. I mean .5 or better which is quite a bit more than the normal opening advantage for White. It is too bad that the lines are very complicated after 12. Nc3  maybe I will find a less complicated line.

Just to satiate curiousity here.  What engine are you using, and how deep of an analysis are you going?  .5 seems reasonable enough to call it a slight advantage.  Converting that advantage though is probably still a tough thing.

Can anyone tell me what lines are u guys analysing?

The Albin countergambit i think is the proper name.

I am using an old version of Fritz. We are analyzing a line in the Albin Counter Gambit. I will have to admit that right now I am overwhelmed with so many things to respond to. If I do not respond to a move it is not intentional--it is just my more than 7 decades old mind and lack of stamina.

Here is a response to one line:

He already stated he used an engine and gave a .5 as a slight advantage.  I was just wondering what he was using because they vary widely in their strengths and evaluations of positions.

Here is a shorter version of the analysis above

The position after c5 is  +0.23 according to houdini. But after Na3, its -0.11.

If Ponz did not use any engine he would not write texts like " white adv says computer".

You guys are overwhelming me.  I will have to continue another day.

However I will go back to my point and that is in this gambit

Black has to make the move d5-d4 to try and set up a space advantage and that takes time if you are on the black side of a gambit. Later Black has to play Ne7 then Ng6 then Nxe5--3 moves just to gain back the Pawn and in the meantime

white 0-0s and makes a very nice fianchetto bishop and after the pawn is regained White has a lead in development and a position which is more than the usual opening advantage and that is not what a gambiteer would like for his gambit. 

Of course Black has many tries to equalize but he is only trying to equalize in the postion after the 9th move. I am not saying the gambit is refuted as that would, in truth, be impossible to verify but I am saying it is a hard line to follow if White plays correctly in the opening. 

Ponz`s statement about Black "only trying to equalize" is simply not true as we can see in this thread. "Holes" in his analysis allows Black to have even better position. See the last one for example.

It`s unfair to belittle opening, only because your claim about it being "unsound" appeared to be false.

I think the best try to get an serious advantage for white in ablin counter gambit is to play a3 early on.

It may very well be that the a3 lines are best against the Albin.

I think the line I gave is also quite good against the Albin.  If there are questions I have not responded to--I will try and respond.

Re Pacifique, I have the "right" to express my opinion about the Albin because I have extensively analyzed it.  Now if I  had not done this, then I would really have no "right"

I will try very hard to get back to unanswered questions when I have the chance.

lol!

Your 9.Qb3 line vs Albin is playable of course, but analysis shows so far that it`s nothing deadly for Black.

Nobody denies your right to express your opinion. But also others have such a right which includes the right to state opinion about content of your posts.

i know, it's still funny though :)

Missed this post before. It explains your evaluation of some positions. You need to download more modern engine. You can download Houdini (probably the strongest chess engine so far)  at houdinichess.com