Chanta (Outside Hand)
Every meld and the pair contains at least one terminal or honor tile. 2 han closed, 1 han open. Sequences are restricted to 1-2-3 and 7-8-9 — the only ones containing a terminal. Junchan is the honor-free 3 han version.
Read the full explainer →Example hand
123m789p111z789s99m
Open in shanten calculator →Related yaku
Double Riichi
2 HanRiichi declared on the very first uninterrupted turn — no calls have happened yet. Closed-only. 2 han instead of riichi's normal 1, with the ippatsu window starting the same turn so the bonus-han chance is the highest of any riichi variant.
Chiitoitsu (Seven Pairs)
2 HanA closed hand of exactly seven distinct pairs. The seven pairs must all be different tiles — duplicates of the same pair count as one. Scores a flat 25 fu and pairs well with honor-heavy or mixed-suit hands that resist forming triplets.
Sanshoku Doujun (Three-Color Straight)
2 HanThe same numerical sequence in all three numbered suits (e.g., 234m / 234p / 234s). 2 han closed, 1 han open. Often paired with pinfu or tanyao, and structurally exclusive with ittsu — pick one or the other based on whether your early draws cluster vertically or spread horizontally.