Kokushi musou

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Kokushi musou (国士無双), also simply known as kokushi, is one of the standard yakuman hands. This hand consists of one of each terminal tile from each suit and one of each honor tiles. The 14th tile must be a duplicate of any terminal or honor tile. If a player draws the thirteen different tile types before pairing any of them, then the hand is of the 13 wait variety (国士無双13面待ち). This hand is one of the two exceptions of the "four melds and one pair" rule of forming a hand, where the other exception is the chii toitsu. This hand is closed only.

Kokushi musou
Type Yakuman
Kanji 国士無双 or 国士無双13面待ち
English Thirteen orphans
Value Yakuman
Speed Slow
Difficulty Hard

Tile diagram

Kokushi musou single wait

              Winning tile:  

Kokushi musou 13-way wait

              Winning tile: Any one of the tiles shown here

  • Winning from this wait is worth two yakuman in some rules.

English reference

  • Thirteen orphans

Formation

Restricted as closed only, this hand must draw at least 12 of the 13 tile types, among the honors and terminals. If a pair exists within the hand upon tenpai, then naturally, the hand is waiting on the last remaining tile type not yet in the hand. In turn, this hand will be deemed impossible for completion, when all 4 of any of the tile types are no longer available. Yet, if a player manages to develop the 13 wait variety, then this hand greatly increases its chances of completion, needing to simply pair any of the 13 types.

Reasonable development of this hand begins with a dealt set of tiles that gives a player the option to call kyuushuu kyuuhai. Declining this option puts the hand on the path to form this yakuman.

Value

This hand is a yakuman hand which automatically awards 32000 points to a non-dealer winner, or 48000 points to a dealer winner.

Meaning and usage

The word kokushi can be translated as "distinguished citizen"; the word musou is often translated as "peerless". The word kokushi should not split up and expressed as "Koku shimusou". This is an incorrect spelling.

External links