Post Reply I was caught in interest for Mahjong and here's some info I found.
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Posted 5/9/09 , edited 5/9/09
I took refference in http://www.mahjongtime.com because it incorporates many styles.

Here's something like Saki playing Richii Mahjong that I'm currently learning. :D

http://mahjongtime.com/mahjong-japanese-scoring.html

The site actually has picture of tiles but it wouldn't paste, still a good source of info i think so.

Multiple mahjong games free for download: http://www.filebuzz.com/findsoftware/Mahjong_4_Player_free_downloads/1.html

Riichi Competition Scoring


East on self-draw (Tsumo)
Tsumo 1 fan 2 fan 3 fan 4 fan
20 700 1300 2600
25 1600 3200
30 500 1000 2000 3900
40 700 1300 2600 4000
50 800 1600 3200 4000
60 1000 2000 3900 4000
70 1200 2300 4000 4000
80 1300 2600 4000 4000
90 1500 2900 4000 4000
100 1600 3200 4000 4000

East on a discard (Ron)
Ron 1 fan 2 fan 3 fan 4 fan
25 2400 4800 9600
30 1500 2900 5800 11600
40 2000 3900 7700 12000
50 2400 4800 9600 12000
60 2900 5800 11600 12000
70 3400 6800 12000 12000
80 3900 7700 12000 12000
90 4400 8700 12000 12000
100 4800 9600 12000 12000


Tsumo table is showing wrong so it's best viewed on the website!

Others on a discard (Ron)
Ron 1 fan 2 fan 3 fan 4 fan
25 1600 3200 6400
30 1000 2000 3900 7700
40 1300 2600 5200 8000
50 1600 3200 6400 8000
60 2000 3900 7700 8000
70 2300 4500 8000 8000
80 2600 5200 8000 8000
90 2900 5800 8000 8000
100 3200 6400 8000 8000


Limit hands
Hand Fan East Other
Mangan 5 4000 2000
4000
Haneman 6 - 7 6000 3000
6000
Baiman 8 - 10 8000 4000
8000
Sanbaiman 11 - 12 12000 6000
12000
Yakuman 13+ 16000 8000
16000


Minipoints Open Conc.
Pung, simples 2 4
Pung, terminals/honours 4 8
Kong, simples 8 16
Kong, terminals/honours 16 32

Minipoints
Pair of dragons 2
Pair of seat/prevalent wind 2
Edge wait, closed wait or pair wait 2
Selfdraw (not in case of pinfu) 2
Open pinfu 2
Minipoints for winning:
Concealed, on a discard 30
Seven pairs (no further minipoints) 25
Open hand and/or selfdraw 20


Riichi
One yaku Iihan yaku
– Riichi Riichi Waiting hand declared at 1000 points stake
+1: Mahjong first round after declaring riichi Ippatsu
+1: Riichi declared in very first go-around Daburu riichi
– Fully Concealed Hand Menzen tsumo Selfdraw on a concealed hand
– All Simples Tanyao chuu No terminals or honours
– Pinfu Pinfu Four chow and valueless pair
Must declare mahjong on a chow with two-sided wait
– Pure Double Chow Iipeikou Two identical chow of the same suit
Mixed Triple Chow San shoku doujun Same chow in each suit
+1: Concealed hand
Pure Straight Itsu The three chow, 1-2-3, 4-5-6 and 7-8-9, of the same suit
+1: Concealed hand
Dragon Pung Fanpai Pung/kong of dragons
Seat/Prevalent Wind Fanpai Pung/kong of seat or prevalent wind
Outside Hand Chanta All sets contain terminals/honours. At least one chow.
+1: Concealed hand
After a Kong Rinchan kaihou Mahjong declared on a replacement tile
Robbing a Kong Chan kan Mahjong when a pung is extended to kong
Bottom of the Sea Haitei Mahjong on the last tile, or the following discard
Two yaku Ryanhan yaku
– Seven Pairs Chii toitsu No two identical pairs
Triple Pung San shoku dokou Same pung/kong in each suit
Three Concealed Pungs San ankou Three concealed pungs/kongs
Three Kongs San kan tsu
All Pungs Toi-toi hou Four pungs/kongs and a pair
Half Flush Honitsu One suit including winds/dragons
+1: Concealed hand
Little Three Dragons Shou sangen Two pungs/kongs of dragons and a pair of dragons
All Terminals and Honours Honroutou All sets consist of terminals or honours
Terminals in All Sets Junchan taiyai All sets contain terminals. At least one chow
+1: Concealed hand
Three yaku Sanhan yaku
– Twice Pure Double Chow Ryan peikou Two times two identical chow and a pair
Five yaku Uhan yaku
Full Flush Chinitsu One suit, no winds/dragons
+1: Concealed hand
– Nagashi Mangan Nagashi mangan Terminal/honour discard (none claimed) when tied
Yakuman
– Thirteen Orphans Koku shimusou One of each honour and terminal and one dublicate
+1 yakuman: Thirteen-sided wait
– Nine Gates Chuuren pooto 1112345678999 + one dublicate of the same suit
+1 yakuman: Nine-sided wait
– Blessing of Heaven Tenho East mahjong on initial fourteen tiles
– Blessing of Earth Chiho Mahjong upon selfdraw in first round
– Blessing of Man Renho Mahjong on discard in first round
– Four Concealed Pungs Suu ankou Four concealed pungs/kongs and a pair
+1 yakuman: unique wait
Four Kongs Suu kan tsu
All Green Ryuu iisou Hand of green bamboo (2, 3, 4, 6, 8) and green dragons
All Terminals Chinrouto
All Honours Tsuu iisou
Big Three Dragons Dai sangen Three pungs/kongs of dragons
Little FourWinds Shoo suushii Three pungs/kongs of winds and a pair of winds
Two yakuman
Big FourWinds Dai suushii Four pungs/kongs of winds
Note: Hands in italics must be concealed!


Riichi Competition Scoring

4 Scoring

4.1 Scoring a winning hand

First find the number of fan (doubles): Add the number of yaku (at least one), the number of red fives, the number of dora tiles, kan dora tiles and in case of a riichi hand the number of ura dora in the hand. This sum is the fan value of the hand.

Then the base value of the hand, the minipoints, is calculated. Round the number up to the next 10. (e.g. 32 minipoints are rounded up to 40). For hands with five or more fan the minipoints are irrelevant.

The value of the hand can now be found in the tables here.

To this value is added 300 for each counter on the table in case of self-draw, and 100 in case of winning on a discard. In addition any riichi bets from players who didn’t win the hand are collected by the winner.

In case more than one player wins at the same time, the discarder settles the score with each winner individually. Each winner receives the value of the hand including the value of counters in play.

In case more than one player wins at the same time, the riichi bets from players who declared riichi without winning go to the winner closest to the discarder’s right. Riichi declarers that win, always get their riichi bet back.

4.1.1 Minipoints

You always get minipoints for one the three following ways of winning:


Minipoints for winning:

Concealed on a discard 30
Seven pairs (no further minipoints are added) 25
Otherwise (Self-draw or Open hand) 20


Add minipoints for pungs and kongs in the hand. Chows have no minipoint value. If the winning tile finishes a pung, it counts as a concealed pung in case of self-draw, and it counts as an open pung in case of winning on a discard.


Minipoints
Open

Concealed
Pung, 2-8
2

4
Pung, terminals/honours
4

8
Kong, 2-8
8

16
Kong, terminals/honours
16

32


In addition 2 minipoints are added for each of the following:

2 minipoints for:

Pair of dragons
Pair of seat wind
Pair of prevalent wind
Winning on an edge, closed or single wait
Winning on self-draw (except in case of pinfu)
Open pinfu


The 2 minipoints for edge, closed or single wait can be claimed even if the hand is waiting for other tiles. Edge wait is 1-2 waiting for 3 or 8-9 waiting for 7. Closed wait is waiting for the centre tile of a chow. Single wait is waiting to finish the pair.

Edge wait: winning on
Closed wait winning on

The winner decides which set is finished by the winning tile. Consider the following waiting pattern:
waiting on or

Winning on the 7, the player can choose whether to claim 2 minipoints for egde wait or
claim 0 minipoints for finishing the two-sided 5-6-7 chow. The latter would allow the
player to claim a yaku for pinfu on a concealed hand.

2 minipoints are awarded for winning on a self-drawn tile. This is voided, however,
in case a yaku is claimed for pinfu.

An open hand worth no minipoints is awarded 2 minipoints for open pinfu.




Riichi Competition Scoring

4.1.2 Exact calculation of the hand value

Instead of calculating manually the value of the hand, the tables are recommended. For completeness, however, the calculation procedure is given here.

For hands worth five or more fan, the table for limit hands is used. For hands worth less than five fan, the value is calculated thus:

The base value of the hand ( the minipoints rounded up ) are doubled by the number of fan plus 2. This figure is the base figure to be paid by all three opponents in case of self-draw. For East, however, the figure is doubled one more time. East receives double payment, but also pays twice the amount of the base figure in case of an opponent’s selfdraw.

Payments are rounded up to the next 100, though never exceeding the value of a mangan. In case of winning on a discard, the discarding player must pay for all opponents, incl. East, i.e. four times the base figure if the winner is not East, and three times the doubled base figure if the winner is East. The payment is rounded up to the next 100, though never exceeding the value of a mangan.

In addition to this is the value of counters and riichi bets on the table.

4.1.3 Scoring tables

The scoring tables are categorized by whether the winner is East or not, and whether the win was on a discard (ron) or on self-draw (tsumo).

In the relevant table, use the column that gives the fan value of the hand and the row that gives the minipoint value of the hand.

The table East on self-draw (Tsumo) gives the amount that each opponent should pay to East. The table Others on self-draw (Tsumo) gives two numbers; the largest number is the payment from East, the other number is the payment from each of the two other opponents. The tables for winning on a discard (Ron) gives the amount that the discarder should pay to the winner.

The tables for limit hands gives the amount that each opponent should pay to a self-drawn win. In case of winning on a discard, the discarder pays for all, e.g. for a haneman the payment is 18 000 to East or 12 000 otherwise.

The value of any counters and riichi bets are added to the value found in the tables.

4.2 Yaku overview

Several yaku requires that the hand is concealed. A concealed hand can be won on a discard. If the discarded winning tile finishes a pung, the pung is considered open when scoring the minipoints, but the hand as such is still concealed.
The yaku are all cumulative, so several yaku may be combined in the same mahjong hand. E.g. a concealed hand with All Simples and Mixed Triple Chows is worth 4 yaku on a self-draw. If the hand is open, it is worth only one yaku. No more than thirteen fan can be obtained in this way.

Yakuman are not cumulative.

4.2.1 One yaku

Riichi (RIICHI).
Concealed waiting hand declared at 1000 points stake. See 3.3.12 for the detailed rules of declaring riichi. An extra yaku, IPPATSU, is awarded for winning within the first un-interrupted go-around after declaring riichi, including the next draw by the riichi declarer. If the go-around is interrupted by claims for kong, pung or chow, including concealed kongs, the chance for IPPATSU is gone.

An extra yaku, DABURU RIICHI, is awarded for declaring riichi in the first go-around, i.e. in the players very first turn. The first go-around must be un-interrupted, i.e. if any claims for kong, pung or chow, including concealed kongs, has occurred before the riichi declaration, DABURU RIICHI is not possible.

Fully Concealed Hand (MENZEN TSUMO)
Winning on a self-draw on a concealed hand.

All Simples (TANYAO CHUU).
Concealed hand with no terminals and honours.

Pinfu (PINFU).
Concealed all chows hand with a valueless pair. I.e. a concealed hand with four chows and a pair that is neither dragons, nor seat wind, nor prevalent wind.

The winning tile is required to finish a chow with a two-sided wait. The hand is by definition worth no minipoints, only the base 30 on a discard or 20 on self-draw.

Pure Double Chow (IIPEIKOU).
Concealed hand with two completely identical chows, i.e. the same values in the same suit, e.g.:



Mixed Triple Chow (SAN SHOKU DOUJUN) .
Hand with three chows of the same numerical sequence, one in each suit, e.g.:



Gives an extra yaku if concealed.

Pure Straight (ITSU).
Hand with tre consecutive chows in the same suit, e.g.:



Gives an extra yaku if concealed.

Dragon Pung (FANPAI/YAKUHAI).
Pung/kong of dragons.

SeatWind (FANPAI/YAKUHAI).
Pung/kong in player’s seat wind.

PrevalentWind (FANPAI/YAKUHAI).
Pung/kong in the prevalent wind.

Outside Hand (CHANTA).
All sets contain terminals or honours. The hand contains at least one chow. Gives an extra yaku if concealed.

After a kong (RINCHAN KAIHOU).
Winning on a replacement tile after declaring a kong. Counts as self-draw.

Robbing the kong (CHAN KAN).
Winning on a tile that an opponent adds to a melded pung in order to make a kong, see Section 3.3.7. Since the kong is not declared successfully, no kong dora is revealed.

Under the Sea (HAITEI).
Winning on self-draw on the last tile in the wall.

Under the Sea (HOUTEI).
Winning on the discard after the last tile in the wall. (This discard can only be claimed for winning, not for kong, pung or chow)



Riichi Competition Scoring

4.2.2 Two yaku

Seven pairs (CHII TOITSU) Concealed hand with seven different pairs. Two identical pairs
are not allowed.

Triple Pung (SAN SHOKU DOKOU) Hand with three pungs/kongs, one in each suit, of the
same number, e.g.:



Three Concealed Pungs (SAN ANKOU).
Hand with three concealed pungs/kongs.
Note: The entire hand is not required to be concealed.

Three Kongs (SAN KAN TSU).
Hand with three kongs.

All Pungs (TOI-TOI HOU).
Hand with four pungs/kongs and a pair.

Half Flush (HONITSU).
Hand with tiles from only one of the three suits, in combination with honours. Gives an extra yaku if concealed.

Little Three Dragons (SHOU SANGEN).
Hand with two dragon pongs/kongs and a pair of dragons. Yaku for the individual dragon pungs are added.

All Terminals and Honours (HONROUTOU).
Hand containing only terminals and honours. Yaku for All Pungs (TOI-TOI HOU) are added.

Terminals in All Sets (JUNCHAN TAIYAI).
All sets contain terminals. The hand contains at least one chow. Gives an extra yaku if concealed.

4.2.3 Three yaku

Twice Pure Double Chows, (RYAN PEIKOU).
Concealed hand with four chows which two and two form Pure Double Chows, e.g.:



No additional yaku for Pure Double Chow (IIPEIKOU) are counted.


4.2.4 Five yaku

Full Flush (CHINITSU).
Hand composed entirely of tiles from only one of the three suits. No honours allowed. Gives an extra yaku if concealed.

All Terminals and Honours Discard (NAGASHI MANGAN).
This special hand cannot be combined with any other hand. After an exhaustive draw, a player can claim this special hand if he has a concealed hand, has discarded only terminal and honour tiles and none of his discards has been claimed. The player does not have to be tenpai. The player receives payment equivalent to a self-drawn mangan, plus counters and riichi bets.

4.2.5 Yakuman

Thirteen Orphans (KOKU SHIMUSOU).
Concealed hand with one of each of the 13 different terminal and honour tiles plus one extra terminal or honour tile, e.g.:



In case of winning with a thirteen-sided wait, i.e. winning on the tile that is paired,
an additional yakuman is awarded.

Nine Gates (CHUUREN POOTO).
Concealed hand consisting of the tiles 1112345678999 in the same suit plus any one extra tile in the same suit, e.g.:



In case of winning with a nine-sided wait, i.e. winning on the extra tile, an additional yakuman is awarded.

Blessing of Heaven (TENHO).
East winning on his initial deal. Concealed kong is not allowed.
No extra yakuman can be obtained for a thirteen-sided, nine-sided or single wait.

Blessing of Earth (CHIHO).
Winning on self-draw in the very first un-interrupted goaround.
Concealed kong is not allowed.

Blessing of Man (RENHO).
Winning on a discard in the very first un-interrupted go-around.
Concealed kongs are also considered to interrupt the go-around.

Four Concealed Pungs (SUU ANKOU).
Concealed hand with four concealed pungs/kongs.
Winning on a discard is allowed only in case of single wait on the pair. In case of winning on a single wait on the pair, an additional yakuman is awarded.

Four kongs (SUU KAN TSU).
Hand with four kongs.

All Green RYUU (IISOU).
Hand composed entirely of green tiles. Green tiles are: green dragons and 2, 3, 4, 6 and 8 of bamboo. E.g.



All Terminals (CHINROUTO).
Hand composed entirely of terminal tiles.
All Honours (TSUU IISOU).
Hand composed entirely of honour tiles.

Big Three Dragons (DAI SANGEN).
Hand with three pungs/kongs of dragons. In case of three melded dragon pungs/kongs, the player feeding the third set of dragons must pay for the entire hand in case of self-draw, and split the payment with the discarder in case of win on a discard. See section 3.3.6.

Little FourWinds (SHOO SUUSHII)
Hand with three pungs/kongs of winds and a pair of winds.

Big FourWinds (DAI SUUSHII).
Hand with four pungs/kongs of winds. This hand is awarded two yakuman. In case of four melded wind pungs/kongs, the player feeding the fourth set of winds must pay for the entire hand in case of self-draw, and split the payment with the discarder in case of win on a discard. See section 3.3.6.


Posted 5/20/09
hah! that helped me!
1932 cr points
Send Message: Send PM GB Post
F / In your fucking h...
Offline
Posted 8/2/09
I took refference in http://www.mahjongtime.com because it incorporates many styles.

Here's something like Saki playing Richii Mahjong that I'm currently learning. :D

http://mahjongtime.com/mahjong-japanese-scoring.html

The site actually has picture of tiles but it wouldn't paste, still a good source of info i think so.

Multiple mahjong games free for download: http://www.filebuzz.com/findsoftware/Mahjong_4_Player_free_downloads/1.html

Riichi Competition Scoring


East on self-draw (Tsumo)
Tsumo 1 fan 2 fan 3 fan 4 fan
20 700 1300 2600
25 1600 3200
30 500 1000 2000 3900
40 700 1300 2600 4000
50 800 1600 3200 4000
60 1000 2000 3900 4000
70 1200 2300 4000 4000
80 1300 2600 4000 4000
90 1500 2900 4000 4000
100 1600 3200 4000 4000

East on a discard (Ron)
Ron 1 fan 2 fan 3 fan 4 fan
25 2400 4800 9600
30 1500 2900 5800 11600
40 2000 3900 7700 12000
50 2400 4800 9600 12000
60 2900 5800 11600 12000
70 3400 6800 12000 12000
80 3900 7700 12000 12000
90 4400 8700 12000 12000
100 4800 9600 12000 12000


Tsumo table is showing wrong so it's best viewed on the website!

Others on a discard (Ron)
Ron 1 fan 2 fan 3 fan 4 fan
25 1600 3200 6400
30 1000 2000 3900 7700
40 1300 2600 5200 8000
50 1600 3200 6400 8000
60 2000 3900 7700 8000
70 2300 4500 8000 8000
80 2600 5200 8000 8000
90 2900 5800 8000 8000
100 3200 6400 8000 8000


Limit hands
Hand Fan East Other
Mangan 5 4000 2000
4000
Haneman 6 - 7 6000 3000
6000
Baiman 8 - 10 8000 4000
8000
Sanbaiman 11 - 12 12000 6000
12000
Yakuman 13+ 16000 8000
16000


Minipoints Open Conc.
Pung, simples 2 4
Pung, terminals/honours 4 8
Kong, simples 8 16
Kong, terminals/honours 16 32

Minipoints
Pair of dragons 2
Pair of seat/prevalent wind 2
Edge wait, closed wait or pair wait 2
Selfdraw (not in case of pinfu) 2
Open pinfu 2
Minipoints for winning:
Concealed, on a discard 30
Seven pairs (no further minipoints) 25
Open hand and/or selfdraw 20


Riichi
One yaku Iihan yaku
– Riichi Riichi Waiting hand declared at 1000 points stake
+1: Mahjong first round after declaring riichi Ippatsu
+1: Riichi declared in very first go-around Daburu riichi
– Fully Concealed Hand Menzen tsumo Selfdraw on a concealed hand
– All Simples Tanyao chuu No terminals or honours
– Pinfu Pinfu Four chow and valueless pair
Must declare mahjong on a chow with two-sided wait
– Pure Double Chow Iipeikou Two identical chow of the same suit
Mixed Triple Chow San shoku doujun Same chow in each suit
+1: Concealed hand
Pure Straight Itsu The three chow, 1-2-3, 4-5-6 and 7-8-9, of the same suit
+1: Concealed hand
Dragon Pung Fanpai Pung/kong of dragons
Seat/Prevalent Wind Fanpai Pung/kong of seat or prevalent wind
Outside Hand Chanta All sets contain terminals/honours. At least one chow.
+1: Concealed hand
After a Kong Rinchan kaihou Mahjong declared on a replacement tile
Robbing a Kong Chan kan Mahjong when a pung is extended to kong
Bottom of the Sea Haitei Mahjong on the last tile, or the following discard
Two yaku Ryanhan yaku
– Seven Pairs Chii toitsu No two identical pairs
Triple Pung San shoku dokou Same pung/kong in each suit
Three Concealed Pungs San ankou Three concealed pungs/kongs
Three Kongs San kan tsu
All Pungs Toi-toi hou Four pungs/kongs and a pair
Half Flush Honitsu One suit including winds/dragons
+1: Concealed hand
Little Three Dragons Shou sangen Two pungs/kongs of dragons and a pair of dragons
All Terminals and Honours Honroutou All sets consist of terminals or honours
Terminals in All Sets Junchan taiyai All sets contain terminals. At least one chow
+1: Concealed hand
Three yaku Sanhan yaku
– Twice Pure Double Chow Ryan peikou Two times two identical chow and a pair
Five yaku Uhan yaku
Full Flush Chinitsu One suit, no winds/dragons
+1: Concealed hand
– Nagashi Mangan Nagashi mangan Terminal/honour discard (none claimed) when tied
Yakuman
– Thirteen Orphans Koku shimusou One of each honour and terminal and one dublicate
+1 yakuman: Thirteen-sided wait
– Nine Gates Chuuren pooto 1112345678999 + one dublicate of the same suit
+1 yakuman: Nine-sided wait
– Blessing of Heaven Tenho East mahjong on initial fourteen tiles
– Blessing of Earth Chiho Mahjong upon selfdraw in first round
– Blessing of Man Renho Mahjong on discard in first round
– Four Concealed Pungs Suu ankou Four concealed pungs/kongs and a pair
+1 yakuman: unique wait
Four Kongs Suu kan tsu
All Green Ryuu iisou Hand of green bamboo (2, 3, 4, 6, 8) and green dragons
All Terminals Chinrouto
All Honours Tsuu iisou
Big Three Dragons Dai sangen Three pungs/kongs of dragons
Little FourWinds Shoo suushii Three pungs/kongs of winds and a pair of winds
Two yakuman
Big FourWinds Dai suushii Four pungs/kongs of winds
Note: Hands in italics must be concealed!


Riichi Competition Scoring

4 Scoring

4.1 Scoring a winning hand

First find the number of fan (doubles): Add the number of yaku (at least one), the number of red fives, the number of dora tiles, kan dora tiles and in case of a riichi hand the number of ura dora in the hand. This sum is the fan value of the hand.

Then the base value of the hand, the minipoints, is calculated. Round the number up to the next 10. (e.g. 32 minipoints are rounded up to 40). For hands with five or more fan the minipoints are irrelevant.

The value of the hand can now be found in the tables here.

To this value is added 300 for each counter on the table in case of self-draw, and 100 in case of winning on a discard. In addition any riichi bets from players who didn’t win the hand are collected by the winner.

In case more than one player wins at the same time, the discarder settles the score with each winner individually. Each winner receives the value of the hand including the value of counters in play.

In case more than one player wins at the same time, the riichi bets from players who declared riichi without winning go to the winner closest to the discarder’s right. Riichi declarers that win, always get their riichi bet back.

4.1.1 Minipoints

You always get minipoints for one the three following ways of winning:


Minipoints for winning:

Concealed on a discard 30
Seven pairs (no further minipoints are added) 25
Otherwise (Self-draw or Open hand) 20


Add minipoints for pungs and kongs in the hand. Chows have no minipoint value. If the winning tile finishes a pung, it counts as a concealed pung in case of self-draw, and it counts as an open pung in case of winning on a discard.


Minipoints
Open

Concealed
Pung, 2-8
2

4
Pung, terminals/honours
4

8
Kong, 2-8
8

16
Kong, terminals/honours
16

32


In addition 2 minipoints are added for each of the following:

2 minipoints for:

Pair of dragons
Pair of seat wind
Pair of prevalent wind
Winning on an edge, closed or single wait
Winning on self-draw (except in case of pinfu)
Open pinfu


The 2 minipoints for edge, closed or single wait can be claimed even if the hand is waiting for other tiles. Edge wait is 1-2 waiting for 3 or 8-9 waiting for 7. Closed wait is waiting for the centre tile of a chow. Single wait is waiting to finish the pair.

Edge wait: winning on
Closed wait winning on

The winner decides which set is finished by the winning tile. Consider the following waiting pattern:
waiting on or

Winning on the 7, the player can choose whether to claim 2 minipoints for egde wait or
claim 0 minipoints for finishing the two-sided 5-6-7 chow. The latter would allow the
player to claim a yaku for pinfu on a concealed hand.

2 minipoints are awarded for winning on a self-drawn tile. This is voided, however,
in case a yaku is claimed for pinfu.

An open hand worth no minipoints is awarded 2 minipoints for open pinfu.




Riichi Competition Scoring

4.1.2 Exact calculation of the hand value

Instead of calculating manually the value of the hand, the tables are recommended. For completeness, however, the calculation procedure is given here.

For hands worth five or more fan, the table for limit hands is used. For hands worth less than five fan, the value is calculated thus:

The base value of the hand ( the minipoints rounded up ) are doubled by the number of fan plus 2. This figure is the base figure to be paid by all three opponents in case of self-draw. For East, however, the figure is doubled one more time. East receives double payment, but also pays twice the amount of the base figure in case of an opponent’s selfdraw.

Payments are rounded up to the next 100, though never exceeding the value of a mangan. In case of winning on a discard, the discarding player must pay for all opponents, incl. East, i.e. four times the base figure if the winner is not East, and three times the doubled base figure if the winner is East. The payment is rounded up to the next 100, though never exceeding the value of a mangan.

In addition to this is the value of counters and riichi bets on the table.

4.1.3 Scoring tables

The scoring tables are categorized by whether the winner is East or not, and whether the win was on a discard (ron) or on self-draw (tsumo).

In the relevant table, use the column that gives the fan value of the hand and the row that gives the minipoint value of the hand.

The table East on self-draw (Tsumo) gives the amount that each opponent should pay to East. The table Others on self-draw (Tsumo) gives two numbers; the largest number is the payment from East, the other number is the payment from each of the two other opponents. The tables for winning on a discard (Ron) gives the amount that the discarder should pay to the winner.

The tables for limit hands gives the amount that each opponent should pay to a self-drawn win. In case of winning on a discard, the discarder pays for all, e.g. for a haneman the payment is 18 000 to East or 12 000 otherwise.

The value of any counters and riichi bets are added to the value found in the tables.

4.2 Yaku overview

Several yaku requires that the hand is concealed. A concealed hand can be won on a discard. If the discarded winning tile finishes a pung, the pung is considered open when scoring the minipoints, but the hand as such is still concealed.
The yaku are all cumulative, so several yaku may be combined in the same mahjong hand. E.g. a concealed hand with All Simples and Mixed Triple Chows is worth 4 yaku on a self-draw. If the hand is open, it is worth only one yaku. No more than thirteen fan can be obtained in this way.

Yakuman are not cumulative.

4.2.1 One yaku

Riichi (RIICHI).
Concealed waiting hand declared at 1000 points stake. See 3.3.12 for the detailed rules of declaring riichi. An extra yaku, IPPATSU, is awarded for winning within the first un-interrupted go-around after declaring riichi, including the next draw by the riichi declarer. If the go-around is interrupted by claims for kong, pung or chow, including concealed kongs, the chance for IPPATSU is gone.

An extra yaku, DABURU RIICHI, is awarded for declaring riichi in the first go-around, i.e. in the players very first turn. The first go-around must be un-interrupted, i.e. if any claims for kong, pung or chow, including concealed kongs, has occurred before the riichi declaration, DABURU RIICHI is not possible.

Fully Concealed Hand (MENZEN TSUMO)
Winning on a self-draw on a concealed hand.

All Simples (TANYAO CHUU).
Concealed hand with no terminals and honours.

Pinfu (PINFU).
Concealed all chows hand with a valueless pair. I.e. a concealed hand with four chows and a pair that is neither dragons, nor seat wind, nor prevalent wind.

The winning tile is required to finish a chow with a two-sided wait. The hand is by definition worth no minipoints, only the base 30 on a discard or 20 on self-draw.

Pure Double Chow (IIPEIKOU).
Concealed hand with two completely identical chows, i.e. the same values in the same suit, e.g.:



Mixed Triple Chow (SAN SHOKU DOUJUN) .
Hand with three chows of the same numerical sequence, one in each suit, e.g.:



Gives an extra yaku if concealed.

Pure Straight (ITSU).
Hand with tre consecutive chows in the same suit, e.g.:



Gives an extra yaku if concealed.

Dragon Pung (FANPAI/YAKUHAI).
Pung/kong of dragons.

SeatWind (FANPAI/YAKUHAI).
Pung/kong in player’s seat wind.

PrevalentWind (FANPAI/YAKUHAI).
Pung/kong in the prevalent wind.

Outside Hand (CHANTA).
All sets contain terminals or honours. The hand contains at least one chow. Gives an extra yaku if concealed.

After a kong (RINCHAN KAIHOU).
Winning on a replacement tile after declaring a kong. Counts as self-draw.

Robbing the kong (CHAN KAN).
Winning on a tile that an opponent adds to a melded pung in order to make a kong, see Section 3.3.7. Since the kong is not declared successfully, no kong dora is revealed.

Under the Sea (HAITEI).
Winning on self-draw on the last tile in the wall.

Under the Sea (HOUTEI).
Winning on the discard after the last tile in the wall. (This discard can only be claimed for winning, not for kong, pung or chow)



Riichi Competition Scoring

4.2.2 Two yaku

Seven pairs (CHII TOITSU) Concealed hand with seven different pairs. Two identical pairs
are not allowed.

Triple Pung (SAN SHOKU DOKOU) Hand with three pungs/kongs, one in each suit, of the
same number, e.g.:



Three Concealed Pungs (SAN ANKOU).
Hand with three concealed pungs/kongs.
Note: The entire hand is not required to be concealed.

Three Kongs (SAN KAN TSU).
Hand with three kongs.

All Pungs (TOI-TOI HOU).
Hand with four pungs/kongs and a pair.

Half Flush (HONITSU).
Hand with tiles from only one of the three suits, in combination with honours. Gives an extra yaku if concealed.

Little Three Dragons (SHOU SANGEN).
Hand with two dragon pongs/kongs and a pair of dragons. Yaku for the individual dragon pungs are added.

All Terminals and Honours (HONROUTOU).
Hand containing only terminals and honours. Yaku for All Pungs (TOI-TOI HOU) are added.

Terminals in All Sets (JUNCHAN TAIYAI).
All sets contain terminals. The hand contains at least one chow. Gives an extra yaku if concealed.

4.2.3 Three yaku

Twice Pure Double Chows, (RYAN PEIKOU).
Concealed hand with four chows which two and two form Pure Double Chows, e.g.:



No additional yaku for Pure Double Chow (IIPEIKOU) are counted.


4.2.4 Five yaku

Full Flush (CHINITSU).
Hand composed entirely of tiles from only one of the three suits. No honours allowed. Gives an extra yaku if concealed.

All Terminals and Honours Discard (NAGASHI MANGAN).
This special hand cannot be combined with any other hand. After an exhaustive draw, a player can claim this special hand if he has a concealed hand, has discarded only terminal and honour tiles and none of his discards has been claimed. The player does not have to be tenpai. The player receives payment equivalent to a self-drawn mangan, plus counters and riichi bets.

4.2.5 Yakuman

Thirteen Orphans (KOKU SHIMUSOU).
Concealed hand with one of each of the 13 different terminal and honour tiles plus one extra terminal or honour tile, e.g.:



In case of winning with a thirteen-sided wait, i.e. winning on the tile that is paired,
an additional yakuman is awarded.

Nine Gates (CHUUREN POOTO).
Concealed hand consisting of the tiles 1112345678999 in the same suit plus any one extra tile in the same suit, e.g.:



In case of winning with a nine-sided wait, i.e. winning on the extra tile, an additional yakuman is awarded.

Blessing of Heaven (TENHO).
East winning on his initial deal. Concealed kong is not allowed.
No extra yakuman can be obtained for a thirteen-sided, nine-sided or single wait.

Blessing of Earth (CHIHO).
Winning on self-draw in the very first un-interrupted goaround.
Concealed kong is not allowed.

Blessing of Man (RENHO).
Winning on a discard in the very first un-interrupted go-around.
Concealed kongs are also considered to interrupt the go-around.

Four Concealed Pungs (SUU ANKOU).
Concealed hand with four concealed pungs/kongs.
Winning on a discard is allowed only in case of single wait on the pair. In case of winning on a single wait on the pair, an additional yakuman is awarded.

Four kongs (SUU KAN TSU).
Hand with four kongs.

All Green RYUU (IISOU).
Hand composed entirely of green tiles. Green tiles are: green dragons and 2, 3, 4, 6 and 8 of bamboo. E.g.



All Terminals (CHINROUTO).
Hand composed entirely of terminal tiles.
All Honours (TSUU IISOU).
Hand composed entirely of honour tiles.

Big Three Dragons (DAI SANGEN).
Hand with three pungs/kongs of dragons. In case of three melded dragon pungs/kongs, the player feeding the third set of dragons must pay for the entire hand in case of self-draw, and split the payment with the discarder in case of win on a discard. See section 3.3.6.

Little FourWinds (SHOO SUUSHII)
Hand with three pungs/kongs of winds and a pair of winds.

Big FourWinds (DAI SUUSHII).
Hand with four pungs/kongs of winds. This hand is awarded two yakuman. In case of four melded wind pungs/kongs, the player feeding the fourth set of winds must pay for the entire hand in case of self-draw, and split the payment with the discarder in case of win on a discard. See section 3.3.6.
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Posted 9/28/09
thanks! so much info! I'm also playing at that website, but unfortunately not winning. But look on the bright side, I'm sort of learning when I can place Mahjong!
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Posted 10/8/09
I won with my first double yakuman today ^_^
~dances~
it felt so freakin' good~
(nine gates FTW)
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Posted 7/20/10 , edited 10/19/10
It´s Rinshan Kaihou not Rinchan Kaihou. I supose it´s easy to get confused...

A legal hand must have at least one Yaku. A Yaku is a specific mix of tiles, as the "two pairs" or the "full flush" in Poker. And has it own value in "Han", 1, 3, 5 Han... Used to calculate the points you will recieve if you win. So saying Sanshoku Dôkô is 2 Yaku is incorrect. Is a Yaku with 2 han value. But this error comes because the first japanese mahjong rules written in english confused those terms calling both "Yaku". I don´t complain because it was a hard task for those who wrote that text.
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