Professionals and amateurs. Who read ladders better?

Here is the real game from the Cyberoro. White is Chun Pongjho, 8p. Black is regular 6d with the 50-50 winning score - I don't know his real name.
This game is similar to O Meien vs Cho Sonjin, from the Japanese honinbo titlematch. O Meien, 9p misread the similar ladder.
The only difference - O, 9p resigned a bit earlier :)