pookpooi wrote:'not a beginner' definition: Those who know and follow all go rules perfectly to the point that they can be a judge in tournament match.
I'd say that in most games and sports, go included, this definition means that a wast majority of players will always be beginners.
I consider myself as "not a beginner" in e.g. go, golf, poker and bridge, but I most definitely couldn't act as a referee in a (serious) tournament in any of them.