Talk:Tile efficiency
Sub name to taatsu
Just a note for taatsu. They can be described as a "protogroup". KyuuAA (Talk:キュウ) 19:53, 11 December 2014 (UTC)
Tile efficiency trainer
https://euophrys.itch.io/mahjong-efficiency-trainer KyuuAA (Talk:キュウ) 14:22, 9 February 2019 (UTC)