Chigorin, I think?

This game was a very good learning tool for me.  I don't very often play against d4 and I have almost zero preparation for the various lines involved.  

My opponent has 2 mistakes and one blunder.  I have one inaccuracy and one mistake.  He played his best move 37.5% of the time.  I played my best move 72% of the time.  And with one of my best Avg Diff per move of 0.14 (gorgeous!)

First mistake of the game was by me on Move 18...g5.  This cost me my 1.25 advantage.  The only blunder of the game was White's Move 20. Ne1.