Riichi (Japanese) Scoring

How It Works

Riichi uses a two-axis system: Han (multiplier tiers) + Fu (minipoints). Your payment is looked up in a table based on your han + fu combination. At 5+ han, fu stops mattering and you enter fixed tiers (mangan, haneman, etc.).

Yaku (Winning Conditions)

You must have at least 1 yaku to win. This is the most important rule beginners miss.

1-Han Yaku

Yaku	Closed Only?	Description
Riichi (立直)	Yes	Declare tenpai with a closed hand, bet 1000 points
Ippatsu (一発)	Yes	Win within one turn of declaring riichi (before your next draw)
Menzen Tsumo (門前清自摸和)	Yes	Self-draw win with a fully closed hand
Tanyao (断么九)	No*	All simples — no terminals or honors (*some rules require closed)
Pinfu (平和)	Yes	No-points hand: all sequences, valueless pair, two-sided wait
Iipeiko (一盃口)	Yes	Two identical sequences in the same suit
Yakuhai (役牌)	No	Triplet of: seat wind, round wind, or any dragon
Haitei (海底摸月)	No	Win on the very last drawable tile (tsumo)
Houtei (河底撈魚)	No	Win on the very last discard
Rinshan Kaihou (嶺上開花)	No	Win on the replacement tile after declaring a kan
Chankan (搶槓)	No	Win by stealing a tile someone adds to an open triplet to make a kan

2-Han Yaku

Yaku	Closed Only?	Description
Double Riichi (ダブル立直)	Yes	Declare riichi on your very first turn (before any calls)
Chanta (混全帯么九)	No (1 han if open)	Every meld and the pair contains a terminal or honor
San Shoku Doujun (三色同順)	No (1 han if open)	Same sequence in all three suits (e.g., 1-2-3 in man, pin, sou)
Ittsu (一気通貫)	No (1 han if open)	1-2-3, 4-5-6, 7-8-9 of the same suit
Toitoi (対々和)	No	All triplets, no sequences
San Ankou (三暗刻)	No	Three concealed triplets
San Kantsu (三槓子)	No	Three kans (quads)
Chiitoitsu (七対子)	Yes	Seven pairs (special hand — always 25 fu)
Honroutou (混老頭)	No	Only terminals and honors
Shousangen (小三元)	No	Two dragon triplets + dragon pair

3-Han Yaku

Yaku	Closed Only?	Description
Honitsu (混一色)	No (2 han if open)	One suit + honors only
Junchan (純全帯么九)	No (2 han if open)	Every meld and pair contains a terminal (no honors)
Ryanpeikou (二盃口)	Yes	Two sets of identical sequences (upgrades from iipeiko)

6-Han Yaku

Yaku	Closed Only?	Description
Chinitsu (清一色)	No (5 han if open)	One suit only, no honors (the flush)

Dora (Bonus Tiles)

Dora add han but are not yaku — you still need at least 1 yaku to win.

Type	How It Works
Dora indicator	Top tile of the dead wall; the next tile in sequence is the dora
Aka dora (red fives)	Red-colored 5 tiles, each worth 1 han. Typically one per suit.
Ura dora	Revealed only if you win with riichi. Tile under the dora indicator.
Kan dora	New dora indicator revealed each time someone declares a kan.

Yakuman (Limit Hands) — 13 Han Equivalent

Yakuman	Description
Kokushi Musou (国士無双)	One of each terminal and honor (13 unique tiles + 1 duplicate)
Suu Ankou (四暗刻)	Four concealed triplets
Daisangen (大三元)	Triplets of all three dragons
Shousuushii (小四喜)	Three wind triplets + wind pair
Daisuushii (大四喜)	Triplets of all four winds
Tsuuiisou (字一色)	All honors (only winds and dragons)
Chinroutou (清老頭)	All terminals (only 1s and 9s)
Ryuuiisou (緑一色)	All green tiles (2-3-4-6-8 sou + hatsu)
Chuuren Poutou (九蓮宝燈)	1-1-1-2-3-4-5-6-7-8-9-9-9 of one suit + 1 more of same suit
Suu Kantsu (四槓子)	Four kans
Tenhou (天和)	Dealer wins on initial deal
Chiihou (地和)	Non-dealer wins on first draw (before any calls)

Payment Scale

Han	Name	Dealer (Tsumo each)	Dealer (Ron)	Non-dealer (Ron)
3-4 (≥70fu) or 5	Mangan	4,000	12,000	8,000
6-7	Haneman	6,000	18,000	12,000
8-10	Baiman	8,000	24,000	16,000
11-12	Sanbaiman	12,000	36,000	24,000
13+	Yakuman	16,000	48,000	32,000

Below mangan, consult a han/fu lookup table — the math gets granular.

Riichi scoring.