http://blog.chess.com/lapsekili/where-is-my-mistake

Another one...

In the godandi game you lost the d4 pawn after white was able to move his knight from b1-d2-b3. You also blocked your light squared bishop with 13 ...d5.

I suggest a plan along the lines of (starting at move 12) Bb6, c5, Bc7, Re8, then d5.

I think 35 ...b3? is bad. You need to get your king into the battle with h6-Kg8-Kf7 etc.

I posted my previous comment to lapsekili's blog but after tonydal's recent comment it felt more appropriate to post here. Anyway, here are some analysis. In my recent post I claimed that black could still draw on 43. move but now it seems that he might actually be able to win - I'm not 100 percent sure of that though.

In general it should be noted that the bishop ending arising after 33. Kxe2 is not that great for black because white's king is much more active. One of the most important principles of the endgame play is to centralize your king and use it as an active fighting unit on contrary to midlegame where it's usually best to hide the king in a corner.

28...Bxg2+ wins a pawn and the exchange.

Here are some analysis for the other game as well.