Saikouisen Nihon Pro Mahjong
 | |
| Country | Japan |
|---|---|
| Inception | 1976 |
| Leader | Mr. Kiyoshi Niitsu, Representative |
| Members | 741 |
The Saikouisen Nihon Pro Mahjong association (「一般社団法人最高位戦日本プロ麻雀協会」 Saikouisen nihon puro maajan kyoukai, informally called "Saikouisen") is a professional organization of competitive mahjong players.
Membership
As of September 2022, Saikouisen currently has 741 members.
Game rules
English: https://www.mjstars.net/_files/ugd/a08886_31822aadd41a410791fee02471b681f0.pdf Japanese (2000): https://saikouisen.com/pdf/171211kitei