I don't think Go is substantially different from chess in that respect. Sometimes you make a blunder and fail to save a big group in midgame. You lose. At this

I don't think Go is substantially different from chess in that respect. Sometimes you make a blunder and fail to save a big group in midgame. You lose. At this point a weaker player might keep on playing, hoping that the opponent makes a bigger blunder along the way, but that's considered bad form.