Jonathan Hop is a 4 dan amateur and studied at the Yu Changhyuk Go Dojo in Migeum, South Korea. He has been playing Go for 9 years and plans to spend many more years delving into t...ver maisJonathan Hop is a 4 dan amateur and studied at the Yu Changhyuk Go Dojo in Migeum, South Korea. He has been playing Go for 9 years and plans to spend many more years delving into the mysteries of the board.ver menos