This was posted a couple of minutes ago on GoDicussions.com
Kim Myungwan, 8p said: “I heard many times that I am “mymy”. I don’t know why people believe that I am “mymy”. I am NOT. Actually I played against mymy and won at KGS”. It’s a big hint.
I checked all games, played by “mymy” on KGS archive: http://www.gokgs.com/gameArchives.js…&oldAccounts=y
He lost only few of them. The only unknown person who beat “mymy” is “tartrate”! Here is that game:
~ Alexandre Dinerchtein [3p]
Soon after that, the theory was confirmed by DrStraw as follows
[…] Now that breakfast has revealed who Tartrate is, despite his wishes to remain anonymous I will confirm that he is right. I have know for several years that Kim Myungwan is, indeed, Tartrate.
He created the KGS account when he was only 6p and his English was not so good. He had a Korea student, resident in the USA, who would log in and chat as Tartrate and negotiate games. He would start the game, disconnect immediately, and the real Tartrate would log on and play. The two of them communicated with some other tool whenever Tartrate wanted to play a game. This is why there was a rumour that he lived in the upper midwest – his student did. Tartrate, himself was in Korea.
I was told this in confidence. I did not learn it because I was an admin. I did, however, use my admin privelges to confirm that the account was logged into from two different countries.
~ Steve Fawthrop [AGA 5d]
The legendary player that striked fear in the hearts of all KGS-players (even high-dan) was none other than Kim Myungwan [8p] from the Korean Hankuk Kiwon.
Update: For everyone who doesn’t know who tartrate is, he used to be the strongest player on KGS. At his peak tartrate managed to beat high ranking players, such as Alexandre Dinerchtein [3p], Svetlana Shikshin [1p] and KGS mymy [6p]. Due to these victories it was rumored that tartrate was no ordinary amateur, but a pro-player instead. Now this rumor has been confirmed.
However it seems kind of sad to finally know his identity. Everyone that has heard of him and seen his games, will agree that to some (or most) players he was something like “the Sai of KGS“.