Mangan waiting for Ryanmen is basically concealed

 

Answer

②concealed

Commentary

In this hand, it seems that many people think if I call for Riichi and self draw, I can get Heinemann!!

What do the statistics say??

Not only was there no difference regardless of the round, but in the 12th round, the expected score was higher for concealed.

Especially at the end of the game, Mangan waiting for Ryanmen is basically concealed.