The Tengen title is decided in a best of five match. The challenger is decided in a large knockout tournament starting with about 40 players. The 20th edition will give you some idea of the tournament structure. Up to the 5th edition the title was decided by a match between the finalists of the knockout main tournament. Kato Masao was thus the first player to hold the title. The Japanese Title Overview page shows what's available.
In the overview players link to their biographies while results link to a detailed description of the edition.
If you have additional information to the supplied info or if you can supply us with the results of other tournaments please send an E-mail about it and it will be included on these pages.