Mahjong Strategy: Riichi Decision 3

Mahjong Strategy

This article is on Riichi decision when you are dealer at East round.

Hi all, Thank you for checking this website ! I got a small advantage at East 3, and got Tenpai with the best tile. Riichi ?

Well I didn’t. Because 1. 3-6 or 4-7 is the worst Ryanmen wait and everyone seems to use Souzu: bamboo. So we can’t expect the opponents will discard 3-6s when I Riichi. 2. The value of 7,700 is quite high in this situation where everyone has 20,000+ points.

And the player on the right tried Kei-ten: yakuless Tenpai and discarded 3s ! Please ignore I made middle-class mistake to discard 4p and lost chance to make this 9,600… (I thought 4p is a little bit safer then, but now I don’t think 6p is such dangerous, and the difference: 1,900 is fairly large)

When we see all the tiles, we can see this was the last 3-6s which can be discarded. So I usually don’t Riichi when

1. Wait is 3-6 or 4-7 (or worse: Kanchan/Penchan)

2. Value of the hand is 5,200/7,700 or higher.

3. Got Tenpai after 9th turn.

By the way, please see the player on the left had Bai-man/SanBai-man hand with these normal discarded tiles ! I never imagined…

I hope this will be of some help to you!

This is my 3rd article on Riichi decision, so please have a look on the links below if you are interested.

1. Riichi Decision 1/ Riichi to proceed the round https://riichi-mahjong.com/2020/01/03/riichi-to-proceed-the-round/

2. Riichi Decision 2 (At South 4) https://riichi-mahjong.com/2020/01/12/mahjong-strategy-riichi-decision-at-south-4/

AbemaTV

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