Daisharin

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Daisharin
Type Optional yaku
Kanji 大車輪 (for pinzu)
大竹林 (for souzu)
大数隣 (for manzu)
English Big wheels
Bamboo forest
Numerous numbers
Value Yakuman
Speed Very slow
Difficulty Very difficult
Examples

Daisharin 「大車輪」 is one of three yakuman awarded for a closed hand with the following pattern: 22334455667788. The name daisharin applies to the pinzu. Using the exact same number pattern, daichikurin 「大竹林」 and daisuurin 「大数隣」 apply to souzu and manzu respectively. Despite the difficulty of attaining this pattern, they are classed as optional.

Despite the fact that they are technically three different yaku, they are often referred to collectively as daisharin: a ruleset which uses daisharin usually implicitly also uses the other two, and occasionally a daichikurin or daisuurin hand will be incorrectly referred to as daisharin.

Pattern

The pattern for daisharin differs only in which tile is used to win the hand, and will always have at least one yasume tile:

Tile-2p.pngTile-2p.pngTile-3p.pngTile-3p.pngTile-4p.pngTile-4p.pngTile-5p.pngTile-6p.pngTile-6p.pngTile-7p.pngTile-7p.pngTile-8p.pngTile-8p.png Agari: Tile-5p.png Yasume: Tile-2p.pngTile-8p.png

The same applies to daichikurin:

Tile-2s.pngTile-3s.pngTile-3s.pngTile-4s.pngTile-4s.pngTile-5s.pngTile-5s.pngTile-6s.pngTile-6s.pngTile-7s.pngTile-7s.pngTile-8s.pngTile-8s.png Agari: Tile-2s.png Yasume: Tile-5s.pngTile-8s.png

and daisuurin:

Tile-2m.pngTile-2m.pngTile-3m.pngTile-3m.pngTile-4m.pngTile-4m.pngTile-5m.pngTile-5m.pngTile-6m.pngTile-7m.pngTile-7m.pngTile-8m.pngTile-8m.png Agari: Tile-6m.png Yasume: Tile-9m.png

Scoring

When classified as distinct yaku, daisharin and company are awarded yakuman. Even if they are not used, however, than hands are worth at least a sanbaiman:

The high score that this hand naturally achieves helps to explain why it is uncommonly scored as yakuman.

External links