For a 4, 5 or 6, the state where only the suji tile on one side is already safe against that player, for example in their discards. For example, when only
is safe,
cannot deal into a 
ryanmen but can still deal into a 
ryanmen, so the ryanmen danger remains.
Kata-suji
Turn what you know into skills you can use at the table
With Mahjong Q'z, you build scoring and yaku judgment hands-on through practice quizzes and lessons. It's free to start.


