I was looking at http://www.xs4all.nl/~rongen17/Hikaru/hikaru001.html and I couldn't find this particular game. Somehow, in my head, I have this memory that is a Shusaku game. Can anyone pattern match it?
Hikaru No Go Games has not identified it either.
This is not a pro game, black's position is too bad to have been played by any professional player. In the position as given, black is behind by some 30-40 points at least.
Perhaps it is a pro vs amateur game. (Yukari Umezawa vs someone, perhaps?)