Call a bad form and leave a good form

 

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Call a bad form and leave a good form

Chow must  be done properly , and the way you do it can make a big difference.

Basically, chow should do "Call a bad form, and leave a good form".

Let's compare the leftover form.

call with ①1 2p

You can wait by Tripe-sided wait. (2-5-8)

But you call with ②4 5p

You wait for only double sided (5-8).

If you are not sure, you had better call with bad form like Penchan or Kanchan.

As a side note,  if you are not sure whether Pong or Chow, you had better call for Pong. 

(reference ; Pong or Chow??) 

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The other day, I have been hit the Tenho which probability is 1/330,000.

If you play 330000 games (about 30000 hard round), you can see.

If you play mahjong 10 times a day , it takes about 9 years.

I think this is too rare.