Go players
Sensei's Library (commonly referred to as SL among Go-players) is an Internet website and wiki, dedicated to articles about, and discussion of, the game of Go. It was started in September 2000, by the Go players Morten Pahle and Arno Hollosi. Hollosi is also known for designing version 4 of Anders Kierulf's popular SGF file format and for his work with the Austrian Citizen Card project.