zing zwanging him
Giggles
I just looked at the game. You should have just brought the king over to the side opposite your passed pawn. White has to stay with the h pawn and you start picking up his other pawns
While 39. k-b4 MAY win. But, there is no need for calculation after k-c6. I was having this conversation with someone earlier.
If you have a clear win which takes little or no calculation then take it(which k-c6 is). K-b4 would take a little more calculation which isn't needed. So just play k-c6 and save some needed energy on other harder games
A game I blundered on. At 40...Ka4 I SHOULD have done f5 for I would keep zing zwanging him and then get a queen. I got a little to greedy and didn't look at the kingside, tried to win on the queenside, and lost.
game:
http://www.chess.com/echess/game.html?id=20793413#