Riichi Mahjong in Singapore

In view of playing Nagashi Mangan starting from the coming session, here’s the clarification regarding this rule. This section has been added under the “Rules” Page.

Criteria

• The hand reaches ryuukyoku i.e. no one wins a hand until only the dead wall is left.
• All discards of the player are either terminal (1 or 9) or honour tiles.
• The player does not have any discards being called by other players.
• The player is allowed to declare riichi or ankan.
• The player does not need to be in tenpai.

Payment

• Similar to a mangan tsumo, oya will receive 4k from all other players, while non-oya will receive 4k from oya and 2k from the other players.
• However, the player does not receive any additional rewards from honbas or riichi deposits.
• Tenpai payments no longer occur.
• If the event of MULTIPLE players completing Nagashi Mangan, repeat the payments as stated above.

Renchan

• A player who completed Nagashi Mangan as oya does not renchan unless his hand is also in tenpai.
• If oya is in tenpai, he is allowed to renchan after paying 4k for Nagashi Mangan.

Chombo

• Chombo by any player will overwrite Nagashi Mangan, meaning only the chombo payments take place and not Nagashi Mangan.

Credit to Lance