"Chouetu" on Cyberoro - is he Cho U, 9-dan?

Chouetu is one of the strongest Japanese players on Cyberoro. His score is outstanding!
333 wins - 37 losses or 90%
Lot of players think that he is probably Cho U, 9-dan pro. I cannot answer this question, but we can try to guess.
Here is his most recent game on Cyberoro.
There were less than 10 observers probably due to the fact there were like 30 8d on the server and he was playing against a 6d.
Do you think that white is Cho U, 9-dan? Maybe ...