A minimum of one yaku is needed to call for mahjong. After winning add up all the minipoints (fu) and yaku/fan then convert the values using the charts below.

Initial Points

If you are playing casually everyone can start arbitrarily with 25000 points.

Criteria

A minimum of one yaku is needed before going out. You cannot be furiten when going out. The dealer usually pays more upon losing but on the same token receives more when winning.

• Win by a discarded tile: Discarder pays winner full score plus values for other players as well.
• Win by self-drawn tile: All player's pay the value of the winner's hand.

Optional Rules

The following are optional rules regarding criteria to being able to win and other scoring adjustments.

Two Fan Minimum ryanhan shibari (二飜縛り) - When there are five counters out (due to Dealer's consecutive wins or draws) a minimum of two yaku are needed to go out. Dora and red five tiles do not count towards the yaku minimum.
Double Ron - Allowing two players to win on a discard. The discarder pays the full score of both players. Riichi bets go to the next closest player to the discarder. Players who declared riichi are privileged to the ura dora and kan ura dora bonus.
Triple Ron - Allowing three players to win on a discard. (This would normally be considered an abortive hand).
Wareme (割れ目) - The player whose wall is broken at the beginning of a hand scores double if he wins.
Agari Yame - If the dealer wins the final hand and is in first place he may choose to end the game early or to play an extra hand.
8 consecutive deals（八本場） - When the dealer counter becomes 8, the dealer can win on any valid hand and counted yakuman.

Outline

Upon scoring, if you have less than five fan in your hand you must add up any fu and follow the values based on the charts below. The minipoints (fu) are then rounded up to the nearest multiple of 10. If you have five or more fan you do not add up any fu directly use the limit hands chart below.

Scoring Table

All patterns below qualify as a yaku and show their fan value. Players who score a yakuman or double yakuman do not count any additional fan. Note that the following is a comprehensive list of yaku, some of which may not be recognize by all players. It should be agreed upon which yaku can be counted before playing.

Value	Hand	Japanese	Description	Pattern Type
1	Riichi	Riichi (立直)	Waiting hand with declaration and 1000 point buy in. Hand must be concealed.	Special
1	One Shot	Iipatsu (一発)	Winning within the first uninterrupted go around after declaring riichi .	Special
1	Double Riichi	Daburu riichi (ダブルリーチ)	Declaring riichi within the first uninterrupted go around.	Special
1	Fully Concealed Hand	Menzen tsumo (門前清模和)	Winning on a self-drawn tile. Hand must be concealed.	Going Out
1	All Simples1	Tanyao chuu (断幺)	Hand contains all simple tiles.	Suit-Based
1	All Chows2	Pinfu (平和)	All chows hand with valueless pairs. The hand must be completed on a chow with a two-sided wait. Hand must be concealed.	Chow-Based
1	Pure Double Chow	Iipeikou (一盃口)	Two identical chows. Hand must be concealed.	Chow-Based
1	Mixed Triple Chow	San shoku doujun (三色同順)	Three chows of the same numerical sequence of different suits. +1 if concealed.	Chow-Based
1	Small Three Similar Triplets	San shoku shodoukoo (三色小同刻)	Two pungs/kong of the same numbers across two different suits and a pair of the same number in the third suit.	Pung-Based
1	Pure Straight	Itsu (一気通貫)	Three chows of the numerical sequences from 1-9 of the same suit. +1 if concealed.	Chow-Based
1	Dragon Pung	Fanpai/yakuhai (翻牌/役牌)	A pung/kong of dragons.	Terminals/Honors
1	Seat/Prevalent Wind	Fanpai/yakuhai (翻牌/役牌)	A pung/kong of seat or prevalent wind.	Terminals/Honors
1	Outside Hand	Chanta (混全帯幺九)	Hand contains terminals/honors and one terminal chow. + 1 if concealed.	Terminals/Honors
1	Out on a Replacement	Rinchan Kaihou (嶺上開花)	Winning after drawing a replacement tile.	Going Out
1	Robbing the Kong	Chan kan (槍槓)	Winning on off a tile used to extend a kong.	Going Out
1	Last Tile Draw/Discard	Haitei/Houtei (海底撈月/河底撈魚)	Winning on the very last tile or the following discard.	Going Out
2	Open Riichi	Oopun riichi (オペン立直)	Declaring riichi and revealing the section of his hand that he is waiting to complete. +1 Yakuman if the player wins in a (non-riichi) discard.	Going Out
2	Seven Pairs	Chii toitsu (七対子)	Seven unique pairs. Hand must be concealed.	Special
2	Triple Pung	San shoku dokou (三色同刻)	Three pungs of different suits.	Pung-Based
2	Pure Shifted Pungs	San ren kou (三連刻)	Three sequential pungs of same suit.	Pung-Based
2	Three Concealed Pungs	San ankou (三暗刻)	Three concealed pungs/kongs.	Pung-Based
2	Three Kongs	San kan tsu (三槓子)	Hand contains three kongs.	Kong-Based
2	All Pungs	Toi-toi hou (対々和)	Hand contains all pungs/kongs.	Pung-Based
2	Half Flush	Honitsu (混一色)	Hand contains one suit and honor tiles. + 1 if concealed.	Suit-Based
2	Little Three Dragons	Shou sangen (小三元)	Two pungs/kongs and a pair of dragons.	Terminals/Honors
2	All Terminals and Honors	Honroutou (混老頭)	Hand contains all terminals or honors.	Terminals/Honors
2	Terminals in All Sets	Junchan taiyai (純全帯幺九)	Hand contains sets with terminal tiles. Hand must contain one terminal chow. +1 if concealed.	Terminals/Honors
3	Twice Pure Double Chow	Ryan peikou (二盃口)	Two times two identical chows. Hand must be concealed.	Chow-Based
5	Full Flush	Chinitsu (清一色)	Hand contains one suit. +1 if concealed.	Suit-Based
5	All Terminal and Honor Discards	Nagashi Mangan (流し満貫)	Only discarding terminal/honor tiles (none claimed). Game ends in a draw.	Special
Yakuman	Counted Yakuman	Kazoe-yakuman (数え役満)	A winning hand with 13 or more fan.	Special
Yakuman	Thirteen Orphans (Impure)	Koku shimusou (国士無双)	One of each honor/terminal and a pair of honors/terminals.	Special
Yakuman	Nine Gates (Impure)	Chuuren pooto (九連宝灯)	1112345678999 of one suit and a matching tile of the same suit.	Suit-Based
Yakuman	Blessing of Heaven	Tenho (天和)	East goes out on the initial draw. Hand must be concealed.	Going Out
Yakuman	Blessing of Earth	Chinho (地和)	Player goes out in the draw. Hand must be concealed.	Going Out
Yakuman	Blessing of Man	Renho (人和)	Player goes out on a discard in the first go around. Hand must be concealed.	Going Out
Yakuman	Four Concealed Pungs	Suu ankou (四暗刻)	Four concealed pungs/kongs and a pair.	Pung-Based
Yakuman	Four Kongs	Suu kan tsu (四槓子)	Hand contains four kongs and a pair.	Kong-Based
Yakuman	Four Pure Shifted Pungs	Suu ren kou (四連刻)	Four sequential pungs of same suit.	Pung-Based
Yakuman	All Green	Ryuu kan tsu (緑一色)	Hand consists of 2, 3, 4, 6, 8, of bamboo or Green Dragon tiles.	Suit-Based
Yakuman	All Terminals	Chinrouto (清老頭)	Hand consists of all terminal pungs/kongs and a pair.	Terminals/Honors
Yakuman	All Honors	Tsuu iisou (字一色])	Hand consists of all honor pungs/kongs and a pair.	Terminals/Honors
Yakuman	Big Three Dragons	Dai sangen (大三元)	Hand consists of three pungs/kongs of dragons.	Terminals/Honors
Yakuman	Little Four Winds	Shoo suushii (小四喜)	Hand consists of three pungs/kong of winds and a pair of winds.	Terminals/Honors
Yakuman	Thirteen Unrelated Tiles	Shiisanbudoo (十三不塔)	East going out on the initial draw with twelve tiles that have no potential of being melded. The last two tiles are a pair.	Going Out
Yakuman	The Big Wheel	Daisharin (大車輪)	Seven consecutive pairs from 2 through 8 of the same suit.	Special
Yakuman	Quadruple Chow		Hand includes four chows of the same numerical sequences in the same suit.	Chow-Based
Yakuman	Dealer’s Consecutive Wins	Paa renchan (八連荘)	Dealer wins eight consecutive hands.	Going Out
Double Yakuman	Big Four Winds	Dai suushii (大四喜)	Hand consists of four pungs/kongs of winds.	Terminals/Honors
Double Yakuman	Nine Gates (Pure)	Chuuren pooto (純正九蓮)	Concealed 1112345678999 of one suit and a matching tile of the same suit with 9-sided wait.	Suit-Based
Double Yakuman	Four Concealed Pungs with Single Wait	Suu ankou tanki (四暗刻単騎)	Four concealed pungs/kongs and a pair with unique wait.	Pung-Based
Double Yakuman	Thirteen Orphans (Pure)	Koku shimusou (国士十三面待ち)	One of each honor/terminal and a pair of honors/terminals with a 13-sided wait.	Special

<sub>Note 1: Open Tanyao (Kuitan) is a variation on All Simples allowing the hand to be opened

Note 2: Tsumo Pinfu is a variation on All Chows limiting the hand to only be won on tsumo</sub>

Fu

East wins

Non-East player wins

Limit Hands

Example

Example 1

Consider the following example. East (東) round; South (南) position; Dora: . Ura-Dora: .

pair	waiting on 3-6-9	concealed pung	self-drawn

Since the value is 5 fan we can skip counting the minipoints (fu) and go directly to the limit hands table. A self-drawn 5 fan hand (mangan) receives 4000 from the dealer and 2000 from each non-dealer (total of 8000).

+ show additional examples

- hide

Example 2
Consider the following example. East round (東); East position (東); Dora: .

pair	waiting on 7-bam	concealed chow	concealed chow	melded pung	out on

Dragon Pung	1 fan
Dora	1 fan
Winning on an open hand	20 fu
Closed Wait	2 fu
Open pung of honors	4 fu
	2 fan, 26 fu
Payment	2900

Looking at the table for East down 2 fan and 30 fu (26 rounded to next 10th), the value of the hand is 2900 from the discarding player.

Example 3
Consider the following example. East round (東); East position (東); Dora: .

six concealed pairs	out on

Seven Pairs	2 fan
Winning with 7 Pairs	25 fu
	2 fan, 25 fu
Payment	2400

Looking at the table for East down 2 fan and 25 fu (in this case 25 is not rounded), the value of the hand is 2400 from the discarding player.