Mahjiku › Mahjong variants › Riichi
麻雀 / リーチ麻雀 · also called Japanese Mahjong, Reach Mahjong Not in Mahjiku yet
Riichi (Japanese) mahjong is the modern competitive ruleset centered on the riichi declaration, mandatory yaku, and han/fu scoring — 136 tiles, four players, no flowers in play.
| Total | 136 |
| Suits | Characters (萬/man), Bamboo (索/sou), Circles (筒/pin) — 1–9, four of each |
| Honours | Winds (E/S/W/N) and Dragons (White/Green/Red), four of each |
| Flowers | none — flower and season tiles are omitted from standard riichi sets |
| Jokers | none |
Some sets include red-five (aka dora) bonus tiles — common online and casually, excluded by some strict competition rulesets.
A winning hand: Four sets (runs, triplets, or quads) plus a pair — 14 tiles on the winning tile.
Scoring: Han (from yaku + dora) and fu (from hand shape) combine through an exponential formula into a point total, capped at mangan and above by fixed limit-hand values.
| Unit | han + fu |
| System | han-fu scoring against a point table |
| Minimum to win | at least one yaku is required — a complete hand with zero yaku cannot legally win (riichi itself is a yaku) |
| Limit | named limit tiers cap large hands: mangan, haneman, baiman, sanbaiman, yakuman |
Who pays: Ron: only the discarder pays the full hand value. Tsumo (self-draw): all three opponents pay — the dealer pays double a non-dealer share.
In Mahjiku. Riichi uses han + fu scoring, structurally different from Mahjiku's Hong Kong faan engine — it isn't supported yet.
Sources: en.wikipedia.org · majandofu.com
Game points only. Mahjiku records mahjong points for a friendly table — no betting, no money, nothing to cash out.
Mahjiku is a live scorekeeper with fully custom house rules — set every value your table plays by. Points only.
App StoreGoogle Play© 2026 Steven Eka Halim · Mahjiku records game points only.