|Riichi Mahjong -- Scoring||
Riichi Mahjong -- Competition Rules
Riichi Mahjong -- Furiten
First find the number of fan (doubles): add the number of fan given by the yaku (at least one), 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). In case of a seven pairs hand, the hand is worth 25 minipoints and there is no rounding up. For hands with five or more fan the minipoints are irrelevant.
The value of the hand can be found in the tables on page 30. The tables are further described in section 4.1.3. To the value in the table are added 100 for each counter on the table in case of self-draw, and 300 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.
When scoring is done with sticks, players should put the sticks on the table where all players can see them during the exchange. When scoring is done with sticks, players are obliged to count up their sticks when asked to by opponents. The game continues if a player.s score goes below zero; the player borrows score sticks from an opponent or the referee.
You always get minipoints for one of the three following ways of winning:
|Minipoints for winning|
|Concealed on a discard||30|
|Seven pairs (no further minipoints 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 .nishes 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.
In addition 2 minipoints are added for each of the following:
The 2 minipoints for Edge, Closed or Single wait can be claimed even if the hand is waiting for other tiles.
Edge wait: 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: as winning on|
|Closed wait:||winning on|
The winning tile will determine the melds that will give the highest-scoring.
In special cases like below, no minipoints can be claimed:
|even though it is only possible to win on|
No minipoints can be claimed, since the tile finished neither an edge wait, nor a closed wait, nor a single wait (pair wait).
2 minipoints are awarded for winning on a self-drawn tile, unless a fan is claimed for pinfu.
Open pinfu is an open hand worth no minipoints (except the 20 minipoints for winning). It is awarded 2 minipoints. For example:
4.1.2 Exact calculation of the hand value
Instead of calculating manually the value of the hand, the tables provided 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 as follows:
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.
In Japanese Riichi Mahjong, yaku is a condition that determines the value of the player's hand. It is essential to know the yaku for game strategy, although the knowledge is not mandatory. A player must have a minimum of one yaku in their hand in order to legally win a hand.
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 fan on a self-draw. If the hand is open, it is worth only two fan. No more than thirteen fan can be obtained in this way.
Yakuman are not cumulative.
4.2.1 One fan yaku
Concealed waiting hand declared at 1,000 points stake. See section 3.3.14 for the detailed rules of declaring riichi. An extra yaku, IPPATSU, is awarded for winning within the first uninterrupted set of turns after declaring riichi, including the next draw by the riichi declarer. If the set of turns 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 set of turns of the hand, i.e. in the player’s very first turn. The first set of turns must be uninterrupted, i.e. if any claims for kong, pung or how, 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.
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.:
All Simples TANYAO CHUU
Hand with no terminals and honours.
Mixed Triple Chow SAN SHOKU DOUJUN
Hand with three chows of the same numerical sequence, one in each suit, e.g.:
Gives an extra fan if concealed.
Pure Straight ITSU
Hand with three consecutive chows in the same suit, e.g.:
Gives an extra fan if concealed.
Dragon Pung FANPAI/YAKUHAI
Pung/kong of dragons.
Seat Wind FANPAI/YAKUHAI
Pung/kong in player’s seat wind.
Prevalent Wind FANPAI/YAKUHAI
Pung/kong in the prevalent wind.
Outside Hand CHANTA
All sets contain terminals or honours, and the pair is terminals or honours. The hand contains at least one chow. Gives an extra fan if concealed.
After a kong RINSHAN 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 3.3.6. Since the kong is not declared successfully, no kan dora is revealed. Counts as ron (win on a discard). Robbing the kong also applies when winning on Thirteens Orphans on a tile used by an opponent for making a concealed kong. Only in the case of Thirteen Orphans can a concealed kong be robbed.
Under the Sea HAITEI
Winning on self-draw on the last tile in the wall. Does not combine with After a kong RINSHAN KAIHOU.
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).
Two fan yaku
Seven pairs CHI TOITSU
Concealed hand with seven different pairs. Two identical pairs are not allowed. Seven Pairs always scores exactly 25 minipoints; extra minipoints for e.g. a pair of dragons is not awarded.
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 fan if concealed.
Little Three Dragons SHOU SANGEN
Hand with two dragon pungs/kongs and a pair of dragons. Add one fan for each of the individual dragon pungs.
All Terminals and Honours HONROUTOU
Hand containing only terminals and honours. Add two fan for All Pungs (TOI-TOI HOU) or Seven Pairs (CHI TOITSU).
Terminals in All Sets JUNCHAN
All sets contain terminals, and the pair is terminals. The hand contains at least one chow. Gives an extra fan if concealed.
4.2.3 Three fan yaku
Twice Pure Double Chows RYAN PEIKOU
Concealed hand with four chows which two and two form Pure Double Chows, e.g.:
No additional fan for Pure Double Chow (IIPEIKOU) are counted.
4.2.4 Five fan yaku
Full Flush CHINITSU
Hand composed entirely of tiles from only one of the three suits. No honours allowed. Gives an extra fan if concealed.
Blessing of Man RENHO
Winning on a discard in the very first un-interrupted set of turns, before the player has had his first turn. Concealed kongs are also considered to interrupt the set of turns. Not cumulative with other yaku and dora.
Thirteen Orphans KOKUSHI MUSOU
Concealed hand with one of each of the 13 different terminal and honour tiles plus one extra terminal or honour tile, e.g.:
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.:
Blessing of Heaven TENHO
East winning on his initial deal. Concealed kong is not allowed.
Blessing of Earth CHIHO
Winning on self-draw in the very first un-interrupted set of turns.
Concealed kong is not allowed.
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.
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.
Little Four Winds SHOU SUUSHII
Hand with three pungs/kongs of winds and a pair of winds.
Big Four Winds DAI SUUSHII
Hand with four pungs/kongs of winds. 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.
4.3 Scoring examples
Scoring example 1:
The winning tile is 9 bamboo on self-draw. The hand is concealed. The player has declared riichi. The hand scores 1 fan for Riichi, 1 fan for Fully Concealed Hand, 1 fan for Pinfu, 2 fan for Pure Straight (because the hand is concealed). Total: 5 fan. If there are no dora, kan dora or ura dora, the hand value is 5 fan. 5 fan is the limit hand called Mangan and it scores 4,000 from each if the winner is East; a total of 12,000 points. If the winner is not East, he receives 4,000 from East and 2,000 from each of the other opponents; a total of 8,000 points.
Scoring example 2:
The winning tile is 9 bamboo on discard. The hand is concealed. The player has declared riichi. The hand scores 1 fan) for Riichi, 1 fan for Pinfu, 2 fan for Pure Straight (because the hand is concealed. Note that even though it is a claimed tile that finishes the Pure Straight, it still scores an extra fan because the hand is concealed). Total: 4 fan. Minipoints: 30 for going out on a discard on a concealed hand. Since it is a pinfu hand there are no further minipoints. If there are no dora, kan dora or ura dora, the hand value is 4 fan, 30 minipoints, and it scores 11,600 from the discarder if the winner is East. If the winner is not East, he receives 7,700.
Scoring example 3:
The winning tile is 9 bamboo on discard. The hand contains a melded set. 7 bamboo is dora. The hand scores 1 fan for Pure Straight. Total: 1 fan. The hand scores an addtional fan for the dora tile. Minipoints: 20 for going out on an open hand, and an additional 2 minipoints for Open Pinfu. 22 minipoints are rounded up to 30 minipoints. The hand value is 2 fan, 30 minipoints, and it scores 2,900 from the discarder if the winner is East. If the winner is not East, he receives 2,000.
Scoring example 4:
The winning tile is 8 bamboo on self-draw. The hand is concealed. The hand scores a yakuman for Four Concealed Pungs. Further yaku or dora tiles are irrelevant since yakuman is the limit. If the winner is East, he receives 16,000 from each; a total of 48,000. If the winner is not East, he receives 16,000 from East and 8,000 from each of the other opponents; a total of 32,000.
Scoring example 5:
The winning tile is 8 bamboo on a discard. The hand is concealed. 4 circles is dora. Even though the hand is concealed, the last pung (which was finished with the claimed tile) is not considered concealed. The hand scores 2 fan for Three Concealed Pungs, 2 fan for All Pungs and 1 fan for All Simples. Total: 5 fan. The hand scores an additional fan for each of the dora tiles for a total of 8 fan. 8 fan is the limit hand called Baiman, and it scores 24,000 points from the discarder if the winner is East. If the winner is not East, he receives 16,000 points from the discarder.
Scoring example 6:
The winning tile is 4 bamboo on self-draw in the set of turns immediately after the player has declared riichi. The hand scores 1 fan for Riichi, 1 fan for Ippatsu, 1 fan for Fully Concealed Hand, 1 fan for All Simples and 2 fan for Seven Pairs. Total: 6 fan. This is the limit hand called Haneman, and it scores 6,000 from each if the winner is East; a total of 18,000 points. If the winner is not East, he receives 6,000 from East and 3,000 from each of the other opponents; a total of 12,000 points.
Scoring example 7:
The winning tile is 4 bamboo on a discard. The player had not declared riichi. The hand scores 2 fan for Seven Pairs. Minipoints: 25 for going out on Seven Pairs. The hand scores no further points even though there is a pair of dragons and a pair wait. The hand value is 2 fan, 25 minipoints, and it scores 2,400 points from the discarder if the winner is East and 1,600 points otherwise.
Scoring example 8:
The winning tile is red dragon on self-draw. The hand is concealed and contains no dora tiles. The hand scores 3 fan for Twice Pure Double Chow and 1 fan for Fully Concealed Hand. The hand cannot also score for Seven Pairs, since the hand is either constructed as seven pairs or as four sets and a pair. Since the hand is more valuable when considered as four sets and a pair than when considered as seven pairs, the hand scores for Twice Pure Double Chow rather than for Seven Pairs. Minipoints: 20 for going out on self-draw, 2 for pair wait, 2 for self-draw, 2 for pair of dragons. 26 minipoints are rounded up to 30 minipoints. The hand value is 4 fan, 30 minipoints and it scores 3,900 from each (a total of 11,700) if the winner is East, and it scores 3,900 from East and 2,000 from the two other opponents otherwise (a total of 7,900).
Scoring example 9:
The winning tile is west on a discard. 7 bamboo is dora. The player is East in an east round. The hand scores 2 fan for Half Flush, 1 fan for Seat Wind, 1 fan for Prevalent Wind and 1 fan for Outside Hand. Total: 5 fan. The hand scores an additional fan for the dora tile, for a total hand value of 6 fan. The winner scores 18,000 from the discarder.
Scoring example 10:
The winning tile is 7 circles on self-draw. The hand is concealed. The player is South. The hand scores 3 fan for Half Flush (because the hand is concealed) and 1 fan for Fully Concealed Hand. Minipoints: 20 points for going out, 8 minipoints for a concealed pung of honours 2 minipoints for self-draw and 2 minipoints for edge wait. Note that even though there is a three-sided wait, the winner chooses which set the winning tile finishes in such a way that the score is maximized. 32 minipoints are rounded up to 40 for a total hand value of 4 fan 40 minipoints, equivalent to a mangan in payment: 4,000 from East and 2,000 from the others for a total of 8,000 points.
Riichi Mahjong -- Competition Rules Riichi Mahjong -- Furiten & Other Rules