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Beginner's Lesson 10
Chanta-based Yaku

In this lesson, we will review the last yaku from Mahjong Lite, chanta.

 

Chanta requires all 4 sets and the pair of a hand to contain at least 1 terminal or honor tile. Terminal tiles are 1s and 9s. In practice, this means that any sequence must be 123 or 789, and any triplets and the pair must be of 1s, 9s, or honor tiles. This is the same as it was in Mahjong Lite. Chanta is worth 2 han.

 

However, there are 2 yaku that are like upgraded forms of chanta. The first is junchan. Junchan requires every set and the pair of a hand to contain at least 1 terminal tile. It is essentially chanta without the honor tiles. In practice, this means that any sequence must be 123 or 789, and any triplets and the pair must be of 1s or 9s. Junchan is worth 3 han.

 

The second is honroutou. Honroutou requires every tile in the hand to be a terminal or honor tile. Because of this, it is necessarily combined with either toitoi or chiitoitsu. Honroutou is worth 2 han, but any hand that qualifies for honroutou will also gain the 2 han from either toitoi or chiitoitsu.

 

Here is a video explaining these yaku by Light Grunty:

 

Chanta, Junchan, and Honroutou

For chanta or junchan, because of the limited types of sequences that those yaku allow, it is common to see them combined with sanshoku doujun. Of course, sanshoku doukou can also be combined not only with chanta or junchan, but also honroutou. And for chanta and honroutou, it is possible to use yakuhai to increase the score of the hand, as well.

 

In the next lesson, we will cover 2 new yaku that apply to single-suit hands.

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