Our Variant Rules
Every Japanese tournament, clubs, leagues and even parlors have their own set of rules. To make sure everybody share the same understanding of rules, we will be following the below rules.
We mainly follow the World Riichi Championship Rules with the exception of Aka-Dora. The only change in rule that we have is whether we play with aka-dora or not so please check with organiser during the first session.
World Riichi Championship Rules
You can download the rulebook here
| Rule | Description | SgRiichi | Tenhou/MaSoul |
|---|---|---|---|
| Aka Dora | Red Dora | Yes | Yes |
| Kan Dora | New Dora revealed after a Kan | Immediate | Immediate for Ankan only |
| Buttobi | End of han-chan once a player goes <0 | No | Yes |
| Shanyu | West Round | No | Yes |
| Tochuu Ryuukyoku | 9 Terminals/Honors, 4 Players Riichi, 4 consecutive round wind discard, 4 Kans | No | Yes |
| Atamahane | Nearest player win in event of multiple players claiming for a win | Yes | 2 winners allowed, draw for 3 winners |
| Nagashi Mangan | Discards of terminals/honours till exhaustive draw | No | Yes |
| Renhou | Win on uninterrupted 1st round of discards | 5 Han | No |
| Agariyame | To end-chan when last dealer gets 1st after winning/tenpai on exhaustive draw | No | Yes |
| Kazoe Yakuman | Cumulative of 13 hans to be awarded as 32k | 24k | Yes |
| Kiriage Mangan | 4 han 30fu or 3 han 60 fu hands to be rounded up as Mangan | Yes | No |
| End Game Riichi Deposits | The Riichi deposits unclaimed during the end of han-chan | Confiscated | Awarded to top |
| Sekinin-Barai | Liability payment | Daisangen, Daisuushii, 4 Kantsu | Daisangen, Daisuushii |
| Chonbo Penalty | Penalty for Non-waiting Riichi, Invalid Kan | 4k-all | Unable to |
Keishiki Tenpai
A hand that requires a 5th copy of the tile to complete the hand is NOT considered Tenpai.
Riichi Mahjong in Singapore 