Browse all articles related to "open hand"
Three yaku drop to 1 han when called: Sanshoku Doujun, Ittsu, and Chanta. Honitsu, Junchan, and Chinitsu also lose 1 han but stay at 2+ han. Full list with exceptions.
Learn about Kuisagari in mahjong - when certain yaku lose 1 han after calling tiles. Understand which yaku are affected and how it impacts your strategy.
Chi lets you complete a sequence (shuntsu) from the player on your left in mahjong. Learn chi rules, when it's allowed, how it restricts your yaku (no riichi, kuisagari), and tactical considerations.
Pon is the mahjong call for completing a triplet (koutsu) from another player's discard. Learn how pon works, when to call it, and the trade-offs — losing menzen, blocking riichi, and yaku restrictions.