Yaku compatibility: Difference between revisions
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* Toitoi + Chanta = Toitoi + Honroutou | * Toitoi + Chanta = Toitoi + Honroutou | ||
* Chiitoitsu + Chanta = | * Chiitoitsu + Chanta = Chiitoitsu + Honroutou | ||
* Honitsu + Tanyao = Chinitsu + Tanyao | * Honitsu + Tanyao = Chinitsu + Tanyao | ||
* Honitsu + Junchan = Chinitsu + Junchan | * Honitsu + Junchan = Chinitsu + Junchan | ||
Revision as of 19:47, 17 March 2015
This is a table showing the compatibilities of the different yaku with each other. While yaku may be combined in one hand, some yaku simply cannot combine with each other due to tile counts and patterns. In other cases, one yaku would always imply another. For instance, a junchan hand has a terminal or honour in every group (since it has a terminal in every group), and so it would qualify for chanta. By rule, two yaku cannot be combined if one always implies the other. There is a partial exception to this as shousangen always implies at least two yakuhai for sets of dragons, but they are not necessarily the same two yakuhai so they are counted in addition.
Yaku
| Key | |
|---|---|
| Abbrevation | Yaku |
| RCH | Riichi |
| DRI | Double riichi |
| IPP | Ippatsu |
| SMO | Mentsumo |
| TAN | Tanyao |
| PFU | Pinfu |
| IPK | Iipeikou |
| ITT | Ittsu |
| YAK | Yakuhai |
| SDJ | Sanshoku doujun |
| SDO | Sanshoku doukou |
| TOI | Toitoi |
| SNA | San ankou |
| SNK | San kantsu |
| CHA | Chanta |
| JUN | Junchan |
| RPK | Ryanpeikou |
| SSG | Shousangen |
| HRO | Honroutou |
| HON | Honitsu |
| CHN | Chinitsu |
| CHI | Chiitoitsu |
| RIN | Rinshan |
| HAI | Haitei |
| HOU | Houtei |
| CHK | Chankan |
Yaku strategy involves viability to form yaku and maximizing hand value, if possible. This maximization often involves the recognition of the different yaku forming in one hand. Often, this affects the decision which tiles to keep and which to discard.
Three combinations actually form yakuman:
- Toitoi + Junchan = Chinroutou
- Toitoi + Mentsumo = Suuankou
- Honroutou + Junchan = Chinroutou
Some combinations form a different yaku which implies one component of the combination, and as a result can never be counted:
- Toitoi + Chanta = Toitoi + Honroutou
- Chiitoitsu + Chanta = Chiitoitsu + Honroutou
- Honitsu + Tanyao = Chinitsu + Tanyao
- Honitsu + Junchan = Chinitsu + Junchan
- Chinitsu + Chanta = Chinitsu + Junchan
These combinations are marked with 
in the table below.
Nagashi mangan is excluded, because it is incompatible with anything, even riichi.
Compatibility
^ Ippatsu requires riichi to be of any use.
| RCH | DRI | IPP | SMO | TAN | PFU | IPK | ITT | YAK | SDJ | SDO | TOI | SNA | SNK | CHA | JUN | RPK | SSG | HRO | HON | CHN | CHI | RIN | HAI | HOU | CHK | |
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| DRI | |
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| IPP | |
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| SMO | |
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| TAN | |
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| PFU | |
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| IPK | |
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| ITT | |
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| SDJ | |
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| SDO | |
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| TOI | |
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| SNA | |
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| SNK | |
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| CHA | |
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| JUN | |
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| SSG | |
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| HRO | |
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| HON | |
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| CHN | |
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| CHI | |
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| RIN | |
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Yakuman
Even different yakuman may be combined. As a result, point values may increase beyond single yakuman values as multiples of yakuman. Of course, that's only if the rules allow extension into double yakuman and beyond. Combinations involving three kinds of yakuman involve either tsuuiisou, tenhou, or chiihou. With this in mind, the options for combining different yakuman are limited.
Compatibility
| KMU | DSG | SUA | SSS | DSS | TSU | RYU | CHR | CHU | SUK | TEN | CHH | ||
| Kokushi musou | KMU | |
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| Daisangen | DSG | |
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| Suuankou | SUA | |
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| Shousuushi | SSS | |
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| Daisuushi | DSS | |
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| Tsuuiisou | TSU | |
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| Ryuuiisou | RYU | |
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| Chinroutou | CHR | |
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| Chuuren poutou | CHU | |
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| Suukantsu | SUK | |
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| Tenhou | TEN | |
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| Chiihou | CHH | |
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External links
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