• remove the Manzu (numbers) tiles from 2 to 8 (leave 1 Manzu and 9 Manzu in play)
• each player makes a wall of 36 tiles
• in the dead wall flip the top 5th tile from the left for Dora indicator
• each player starts with 35,000 points
• choose a scoring method (see Scoring:)
• start with East round & East player, and go East > South > West > East > etc.

Game follows Riichi rules, except:

• you're not allowed to call Chi
• you can call Kita to get 1 han for each North tile you’ve called with Kita (if North is Dora, double han points for each Kita)
• to call Kita: announce “Kita”, set North tile aside, draw a replacement tile from the end of the dead wall and move the last tile from the live wall to the dead wall (the dead wall always has 14 tiles)
• calling Kita breaks ippatsu, double riichi, chiihou etc.
• winning on the replacement tile drawn after calling Kita gives the Rinshan Kaihou
• it is possible to Ron with the North tile just called Kita by another player
• Dora indicator 1 Manzu indicates 9 Manzu as Dora

• add 1 han for each Kita called (2 han each if North is Dora)
• use one scoring method:
  • either payments work the same as regular 4-player scoring tables (due to missing 4th player, Ron is worth more than Tsumo win)
  • or have losing players split missing player’s payment (from 4-player scoring tables)
• each Honba adds 200 bonus points instead of 300 points

Note:

• calling Kita doesn't reveal any new Dora
• calling Kita doesn’t open your hand (it is still concealed if it was before Kita call)
• you don't have to call Kita (you can keep North tiles to make triplets, pairs or Kokushi Musou)