i just made up a new gambit what do y'all think

 its kind of a bdg and it gives black the advantage of the center notice i said advantage not control the center because white has a piece in the center

or this

Why would white just give up a piece like that and let black advance?

I don't like the exposed king combined with the open center.

shitty imo

Both viable gambits but essentially a waste of a pawn.  Both lead to white advantage.

i dont think they lead to a white advantage black has control of the center

chesschamp1020 wrote: i dont think they lead to a white advantage black has control of the center

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 It is a very fleeting control (I'd suggest analyzing this line 3 to 5 moves deeper).  

In addition, it is not sufficient compensation for the pawn for several reasons, one being that the tempo is unchaged.

 

These gambits already exists. (I Play them on occasion) They are the Scandinavian "Center Counter) icelandic counter gambit  

my bad i didnt know

thats why databases are made for.

futuregm23 wrote: These gambits already exists. (I Play them on occasion) They are the Scandinavian "Center Counter) icelandic counter gambit  

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 Well, almost.

They usually happen after 3.c4, not 3.Nc3