I thought you were pretty close at times... just a bit mixed up with what defense you were going for. What the moves say to me:
31...Bb7 -- less active than on a6 maybe, but I think your plan is to tie defenders to d5 with a possible Nf6 in the future.
32...Nd7 -- I like how your knight helps fill in the dark square holes.
33...Kf6 -- Takes away f6 from the knight, so Bb7 seems a bit more passive now. The king wants to be in front of the passed pawn anyway, not on the kingside. This was the beauty of your Bb7 idea. The knight holds e5 for you until white tries to bring his bishop into the game, them boom, Nf6 keeps white tied to defense.
34...a6 -- Not bad, but again your king seems misplaced in all of this.
35... h6 -- you pass? His bishop is starting to come around, get your king off of f6 and your knight on f6 to tie him back onto the pawn. 35...b5 with Nb6 with the same idea is interesting too.
36...h5 -- Yeah, turns out h6 was worse than a pass, because it meant you had to look out for h5 by white. I think white gets the better of the kingside structure. e5 control, your pawns on light squares, things like this.
37...Kf7 -- Yes!!
38...Kf6 -- No!!
You might not be lost, but for each move you leave your king out of the game, it gets a tiny bit harder to defend the position.
39...Kg7 -- A painful move, gotta try Kf7 again. White actually wants his pawn as far back as possible. Each advance limits his options and ability to coordinate around it. Which is why 41.d6+ would be a scary move to have a GM play against me. It basically means his position has reached the maximum he can hope for.
41...Kg7 -- You absolutely misunderstand the king's role in this endgame. He has to help. You're a piece down on the queenside and center. You can't draw a GM a piece down :)
42...Bc8 -- Yeah, I wonder what he had planned on 42...Bc6? I don't really see how he's breaking through. 42.Bd5 seems to win a pawn (as what might have happened in the real game) because of a combo with black pieces on: Kb5, Bd8, and Bc6 or similar.
So to answer your question on move 42, no, I think white has shut your king out, and frozen your minor pieces, his king can probe your Q-side. Again I'm thinking of the general Bd8 Bxd7 combo. Since you're more or less forzen in place, he can pick the best timing.
Hello Chess.com. I played the following game against GM Pascal Charbonneau today in a simul. I played a nice but slightly strange opening, similar to a grunfeld but originating from the english opening. After some middle game troubles, I reached a slightly disadvantageous ending, but I think I could have held a draw. Any thoughts?
Here is the game: