Ari-ari

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Ari-ari 「アリ アリ」 refers to a ruleset which allows kuitan (open tanyao) and allows atozuke (winning without confirmed yaku). It is generally the most commonly accepted ruleset pertaining to Japanese mahjong.

Conversely, nashi-nashi forbids kuitan and atozuke. Nashi-ari would forbid kuitan but allow atozuke, and vice versa for ari-nashi.

Game settings

In addition to kuitan - Ari and atozuke - Ari, the following settings are often used in "Ari-Ari" rulesets:

• Agariyame - Nashi
• Atamahane - Nashi
• Kuikae - Nashi
• Tobi - Ari

Dora

• Akadora - Variable
• Kandora
• Uradora - Ari