This site gives us a few hits. It's a Japanese language translation of some of the main strategies posted here (principally written up by El_Capitan). So if you only read Japanese, visit them. (But then I guess you wouldn't be reading this then...)

UPDATE: Iron Wax (the site owner) says his main page is: http://kotetsu.hn.org/ron/.
posted by Tim at 2:13 PM