A complete beginner is amateur 15th kyuu, a full strength amateur is 4th dan. Amateur 4th dan is weaker than the lowest (beginner) pro rank, which is 6th kyuu.
(hide) If you are waiting for your turn, click on "change" next to the "refresh" on the main page, then set refresh the page to 30 seconds to get your turn to move displayed faster. (Servant) (show all tips)