you were a piece down after 10 moves, and a rook down after 18. i doubt we really needed to tell you when you had a lost position
Not sure where things went wrong
I had felt that my lost rook compared to his lost bishop, pawn, and all isolated (one passed, yes) pawns that I wasn't that bad off at 18.
Right in the opening: 3. Nc3 is pretty odd here. Nf3 is far more common, intending e3 & Bxc4 and preventing e5.
3. e4 is a sharp modern continuation.
You were playing inaccuracies way before 18. Read up more on the QGA for stronger responses. Your opponent let you back into the game for a brief moment, by playing even worst. You need to know the strategy behind the Queen's Gambit, and how to play it positionally.
I am a 1300ish player, and as such I make a lot of mistakes and lose a lot of games. Usually by the midgame I pretty much know where I stand in a game (winning, losing, even).
What bothered me about this game was that after the moves between 15 and 18 I felt like I was in a good position to win the game. I felt that with his nonexistent pawn structure I was at least even ... probably better.
However, as you can see, things quickly turned ugly for me.
I'm hoping that people here can either explain to me how/why my position wasn't as good as I thought after 18, or what I did to mess it up.
Thanks,
Evan