: I agree with Joaz B.
: aji keshi! I think it's best to play B17 first, to kill black's eye-shape. If he then connects at C16, then you can play your as a forcing move. After playing first, I don't think B17 will be your sente any more. This is a huge loss, because it means you have no way to destroy your opponent's base in sente so black is quite a bit stronger than he should have been.
and 
: feels too slow. Perhaps better just connect at F12 with ?
: big overplay. Black is now clearly better off.
says "OK, let's abandon those stones for now", which is all right (even though I think the high approach move would be better). Of course, black then solidifies his capture. But then with 
you walk right out! That is not a logical sequence, and it is overplay. Black is too strong here for you to walk out. Once you decide to abandon those stones, stick to your plan. How about L9 instead of ? Feels much better to me.
: BIG overplay! Why would you rescue this one stone? It's useless!
: doesn't work, now you should die - end of comments.Summary:
This was a tough game for white.
and put you behind in the opening, and the overplay of made the position even tougher. Moves like and should be eradicated from your game - stones like that should not be defended, and trying to hang on to them was the final straw that lost you the game.By the way: you could still live by playing J7, black didn't really kill you! But also that would not be enough to win the game...
Also: you have one hour plus byo-yomi, you know? It is not forbidden to use it
