Poor, Unfocused Opening; Good Endgame

Your thoughts would be appreciated. I annotated the game with mine. I think I made a good come back in the middle game and had a pretty good endgame. I'm an Elo 1100 player.

Yeah, I think e4 was a strange choice out of the opening. Nc3 or Nf3 are both better choices imo, that way your pawn doesn't become a liability right out of the opening. After the bishop goes to b7, and b4 if Nc3, youre losing the pawn anyway. More natural is to play e3 later after your bishop is outside of the resulting pawn chain, but the fact that he blundered his queen makes it all irrelevant anyway.

Instead of 12. Ke2, giving up your right to castle, maybe Bd2 would have been better? When you are massively up on material you want to usually trade off as many pieces as possible, the more you simplify, the more powerful that extra queen is going to get. He would have been forced to trade, due to the threat of Rxa6 picking up the hung knight furthering your material advantage, and after 12...Bxd2 13. Qxd2 you have great control over the dark squares and maybe after something like Rc1, a huge initiative, win win. But again, he blundered the piece anyway.

You should try playing those winning endgames against a computer, after you get used to playing a won position like that, it will be a no brainer to win when you get it in a game. Cheers!

Thnkas for the input. I probably could have traded some pieces in exchange for positional flexibility.

3.e4 is played far more often than nc3 and it certainly isn't it bad. 4.Nf3 was odd, though. Better is 4.a4 or maybe 4.Nc3. There were some better choices for your fifth move as well. Don't blame e4, it's a perfectly good response to the QGA.

@paulgottlieb Thanks for the great feedback! I didn't even notice the play on 30.Kf1. That was another total opportunity missed by black! Certainly got lucky. I think I kept up the fight pretty well overall and I was surprised I was able to eek out a win after all my blunders.

There were many missed chances for both sides in this game.

What everyone else said, and I think you dilly-dallied a bit too much with your castling - just get it done, especially when going for a fianchetto, which is very vulnerable when in transition.

You actually had a win at move 51 with the queen sac 51.Qxg5+ Kxg5 52.Ke4 Kf6 53.Kf4 (you take the Opposition) Kg6 54.Ke5 (occupation of the key squares e5, f5 or g5 means pawn promotion is now theoretically guaranteed). This is basic king-pawn vs king theory and is worth learning.

And I think on move 47 when you were contemplating a draw it is an easy win for you. I would certainly at least test my opponent if I'm in a queen vs rook struggle.