>>535217838
>musuji ayk
lol no
>>535218005
That's not one chance. For the 2s to be one chance you would need to see three 3s. Kabe works by knowing where the tiles that can form a block are. It's useful for both ryanmens and kanchans.
Here's a link that explains it in more detail with examples.
>https://riichi.wiki/Kabe

>>532319583
Did you know that Tenhou also has public wall code that anyone can audit? Someone has even reverse engineered it.