To win at mahjong, knowledge of yaku is essential. No matter how good your hand is, you cannot win without yaku. This article organizes all mahjong yaku by han value, explaining formation conditions and practical applications in detail from 1 han yaku to yakuman.
Understanding Basic Yaku Rules
What is Han Count?
Yaku have a standard called han count for scoring:
- 1 han yaku: Basic yaku (Riichi, Tanyao, etc.)
- 2 han yaku: Moderately difficult yaku (Toitoi, Chiitoitsu, etc.)
- 3+ han: High-scoring yaku (Honitsu, Chinitsu, etc.)
- Yakuman: Maximum scoring yaku (Kokushi Musou, Suuankou, etc.)
Relationship Between Calling and Yaku
| Symbol | Meaning |
|---|---|
| × | Cannot call (closed hand only) |
| ○ | Can call (han count unchanged) |
| ○ (1 han) | Han count decreases when open |
1 Han Yaku
Closed Hand Only 1 Han Yaku
Riichi (Ready Hand)
Han: 1 han Calling: × (Closed hand only) Formation: Declare “riichi” when reaching tenpai with closed hand, then win
Practical Points:
- Basic mahjong strategy
- Requires 1000 point riichi stick
- Can combine with ippatsu, tsumo, dora
Pinfu (All Sequences)
Han: 1 han Calling: × (Closed hand only) Formation:
- All sets are sequences
- Pair is not yakuhai
- Wait is open-ended
Example: 









Practical Points:
- Excellent combination with riichi
- Low fu, so combining with other yaku is important
Iipeikou (Pure Double Sequence)
Han: 1 han Calling: × (Closed hand only) Formation: Make two identical sequences
Example: 



pattern
Luck-Based Yaku
| Yaku Name | Formation Condition |
|---|---|
| Ippatsu | Win within 1 turn after riichi |
| Chankan | Win by ron on someone’s added quad |
| Rinshan Kaihou | Win by tsumo with replacement tile |
| Haitei Raoyue | Win with last draw tile |
| Houtei Raoyui | Win by ron on last discard |
Callable 1 Han Yaku
Yakuhai (Honor Tiles)
Han: 1 han
Calling: ○
Formation: Make triplet of
,
,
, seat wind, or prevailing wind
Practical Points:
- Most basic calling yaku
- Can combine multiple yakuhai
Tanyao (All Simples)
Han: 1 han Calling: ○ Formation: Only 2-8 suit tiles (no terminals or honors)
Practical Points:
- Most recommended yaku for beginners
- Easy to call and build hand
2 Han Yaku
Closed Hand Only 2 Han Yaku
Chiitoitsu (Seven Pairs)
Han: 2 han Calling: × (Closed hand only) Formation: Make 7 pairs (special shape)
Example: 







Practical Points:
- Special shape different from normal sets
- Cannot use 4 identical tiles
Double Riichi
Han: 2 han Calling: × (Closed hand only) Formation: Riichi on first turn before anyone calls
Sanankou (Three Concealed Triplets)
Han: 2 han Calling: ○ (but needs 3 concealed triplets) Formation: Make 3 concealed triplets
Example: 









Callable 2 Han Yaku
Toitoi (All Triplets)
Han: 2 han Calling: ○ Formation: All sets are triplets/quads
Example: 









Sanshoku Doujun (Three Color Straight)
Han: 2 han (1 han when open) Calling: ○ Formation: Same numbered sequences in all three suits
Example: 






Sanshoku Doukou (Three Color Triplets)
Han: 2 han Calling: ○ Formation: Same numbered triplets in all three suits
Example: 






Ikkitsuukan (Pure Straight)
Han: 2 han (1 han when open) Calling: ○ Formation: 1-9 sequences in same suit
Example: 






Honchantaiyaochuu (Mixed Outside Hand)
Han: 2 han (1 han when open) Calling: ○ Formation: All sets and pair contain terminals or honors
Example: 









Shousangen (Little Three Dragons)
Han: 2 han
Calling: ○
Formation: Two triplets and one pair of dragon tiles (
White,
Green,
Red)
Example: 









Practical Points:
- Use three dragon tiles for pair + 2 sets
- Remaining 2 sets can be anything (sequences or triplets)
- Can call (pon, chi, or kan)
- Any wait type is acceptable
- One step before daisangen
- Often combines with yakuhai (2 additional han from 2 dragon types)
Other 2 Han Yaku
| Yaku Name | Calling | Formation Condition |
|---|---|---|
| Honroutou | ○ | Only terminals and honors |
| Sankantsu | ○ | Make 3 quads |
3 Han Yaku
Ryanpeikou (Twice Pure Double Sequence)
Han: 3 han Calling: × (Closed hand only) Formation: Make two iipeikou
Example: 









Junchantaiyaochuu (Pure Outside Hand)
Han: 3 han (2 han when open) Calling: ○ Formation: Chanta without honor tiles (only terminals 1 and 9)
Example: 









Honitsu (Half Flush)
Han: 3 han (2 han when open) Calling: ○ Formation: One suit type + honor tiles
Example: 









Practical Points:
- Relatively easy high-scoring yaku
- Honor tile management is key
6 Han Yaku
Chinitsu (Full Flush)
Han: 6 han (5 han when open) Calling: ○ Formation: Only one suit type
Example: 









Practical Points:
- Highest han count among regular yaku
- Hand easily read by opponents
- Three types: Characters, Dots, or Bamboo chinitsu
Yakuman
Relatively Achievable Yakuman
Kokushi Musou (Thirteen Orphans)
Calling: × Formation: One each of terminals and honors + pair of any
Example: 











+ any one
Daisangen (Big Three Dragons)
Calling: ○
Formation: All three dragons (
) as triplets
Suuankou (Four Concealed Triplets)
Calling: × Formation: 4 concealed triplets + pair
Example: 









Important: For ron win, only tanki wait is valid
Ultra-Rare Yakuman
Tsuuiisou (All Honors)
Calling: ○ Formation: Only honor tiles
Example: 









Ryuuiisou (All Green)
Calling: ○
Formation: Only 



+
(Green)
Chinroutou (All Terminals)
Calling: ○ Formation: Only terminals (1 and 9)
Example: 









Chuuren Poutou (Nine Gates)
Calling: × Formation: One suit with three 1s, three 9s, one each 2-8, + any matching tile
Example: 











+ any
~
Suukantsu (Four Quads)
Calling: ○ Formation: Make 4 quads
Example: 













Four Winds Yakuman
| Yaku Name | Formation Condition |
|---|---|
| Shousuushii | 3 wind triplets + 1 wind pair |
| Daisuushii | All 4 winds as triplets |