Seok-Bin Cho
Cho Seokbin was yeongusaeng in Korea till age 16 when he stopped due to circumstances beyond his control. As a result, he is not a professional Go player and is now over the age limit in Korea. Nonetheless, he is very strong. In 2006, he moved to Germany, then Poland, where he is taught Go and won a lot of Go tournaments. As of now (2014) he lives in Nagoya/Japan, where he teaches insei.
He is the current Amateur-Kisei which is equivalent to the official strongest amateur in Japan. ([1], [2])
New joseki, invented by Cho: http://gogame.info/samples.html?id=26
Apr 2007 interview with Cho Seokbin at by Sorin Gherman at 361points.
He was once the highest rated european amateur player.
[1] href=" https://scontent.xx.fbcdn.net/hphotos-xft1/t31.0-8/10359127_10152872596878151_3306594703397288319_o.jpg
[2] http://www.go-baduk-weiqi.de/cho-soekbin-ist-amateur-kisei
[3] Facebook page: https://www.facebook.com/cho.seokbin
[4] Visit in Portland 2007: https://www.flickr.com/photos/aenigma/sets/72157600190580856/
[5] Vienna 2013: http://intergofed.org/13-igf-news-feed/228-seok-bin-cho-sweeps-vienna.html