HOW YOUR
SCORE IS CALCULATED 
In every video mahjong game in MAME, scores are tabulated by the computer whenever someone wins a round. Still, that doesn't mean that you should not learn how to do it yourself as well. Scoring is surprisingly easy once you get a grip with it.
Here's a breakdown on how scoring works:
1. You win and your hand is tabulated.
2. Your hand is automatically given 20 points for winning.
3. You can receive additional points depending on how you went out
and on what type of sets and pair you have in your hand.
Not all sets and pairs score points though. A set of any Chi is worth nothing.
Note also how concealed sets are worth twice as much as revealed ones:
 Go out with concealed hand by discard. Ron. 10 pts
 Go out with a drawn tile. Tsumo. 2 pts
 Go out with 7 pairs. 5 pts
 Go out by OneChance*. 2 pts
 Pon of Simples. Revealed. 2 pts
 Pon of Simples. Concealed. 4 pts
 Pon of Dragons, Winds, or Terminals. Revealed. 4 pts
 Pon of Dragons, Winds, or Terminals. Concealed. 8 pts
 Kong of Simples. Revealed. 8 pts
 Kong of Simples. Concealed. 16 pts
 Kong of Dragons, Winds, or Terminals. Revealed. 16 pts
 Kong of Dragons, Winds, or Terminals. Concealed. 32 pts
 Pair of Dragons. 2 pts
 Pair of your Wind. 2 pts
 Pair of Prevailing Wind. 2 pts
* OneChance means having only one tile possibility to go
out.
4. Points are totaled and rounded up to the nearest 10th. 56 points
become 60 points. 42 points become 50 points. Always round up, never
round down. Scores can range from as little as 20 to as much as 70. The maximum is 70,
even if you get more than that. This is your base score.
* A set completed when you declare Ron is considered revealed
pointwise, however if your hand was completely concealed before
that tile, your hand is still considered concealed Yakuwise.
* A hand containing 7 pairs has a base score of 25. It is not
rounded off and can not be given additional points if it has scoring
pairs.
* If you get Pinfu (A hand with 4 Chi and a pair) by Tsumo, you get
the fan but you do not get the 2 points for Tsumo.
5. Add up the total amount of fans contained in your hand. Fans can be obtained from Yakus and
Doras. Each Dora is worth 1 Fan. Each Yaku is worth 1 Fan as well. You
automatically receive two Fans for winning as well. Yakus and Doras are
explained in the Special Rules section.
* You can only receive fans for Doras unless your hand is entirely
concealed. If your hand is revealed, then you get no fans for having
Doras in your hand. Note however that this does not apply to every
game.
6. Your base score is doubled for every fan you have in your hand. The
total score after doubling is your hand score.
* When you win a round, a screen pops up within the game which
usually list all the fans and Yakus that you obtained with your hand. Some
games even announce the names of each Yaku as the
list is displayed. Pause the game and see if you can figure out
which Yaku conditions you fulfilled with your hand :)
7. After that, multiply your hand score by a certain amount depending
on if you were dealer or not, and how you went out. This part of scoring varies from game
to game. There are 3 types I know of:
Type A (Base on real 4player Japanese Mahjong):
 Was Dealer. Won by Tsumo. Multiply by 2. Amount each
losing player pays.
 Was Dealer. Won by Ron. Multiply by 6. Amount discarder
pays. Others pay none.
 Was NonDealer. Won by Tsumo. Multiply by 1. Amount
nondealers pay.
 Was NonDealer. Won by Tsumo. Multiply by 2. Amount
dealer pays.
 Was NonDealer. Won by Ron. Multiply by 4. Amount
discarder pays. Others pay none.
* The discarder is the player whose discard was used by the
winner to declare Ron and win.
Type B (Less Common in 2Player Video Mahjong Games):
 Was Dealer. Won by Tsumo. Multiply by 2.
 Was Dealer. Won by Ron. Multiply by 6.
 Was NonDealer. Won by Tsumo. Multiply by 2.
 Was NonDealer. Won by Ron. Multiply by 4.
Type C (Most Common in 2Player Video Mahjong Games):
 Was Dealer. Multiply score by 6.
 Was NonDealer. Multiply score by 4.
* In 4player mahjong, when someone declares Tsumo, payoff to
the winner is divided amongst the other 3. Normally each losing player
pays 1/3 the score of the winning hand. In the case of Ron, the
discarder ends up paying the entire payoff and the
other 2 pays none.
*In 2player mahjong, however, there is only one loser. Since
there is only one loser, there are no other players to help out
with the payoff. So when a player Tsumo, the losing player ends up paying everything, just
like if it was Ron. Of course, this may not always be the case as
shown by Type B.
8. Total score is rounded up to the nearest 100th. This is your final
score. Bonus points may be rewarded as well to your final score.
More on that further down the page.
This scoring scheme is adequate when having 5 or less fans in
your hand (excluding the 2 Fan bonus for winning). When you have more than 5 fans, your base score is not
calculated, only the amount of fans you have is of concerned. If you
have 13 or more fans, you have obtained Yakuman. Double and Triple
Yakuman are possible as well. The highest attainable score in
mahjong is Yakuman times 7. Much more on this in the next section. 
SCORING
CHARTS 
In real mahjong, charts are used to tally up scores.
Scoring with charts is much easier to do and more convenient than trying to
add everything up by hand. To find out what your final score will be,
you first need to find out your base score as well as the amount of
fans the winning hand was worth. Locate the final score in one of
the charts below depending on the multiplier.
* Note that the 2 additional fans given automatically for
winning is not represented in the chart as fans but is tabulated within the
scores. These 2 fans already multiples your score by 2 each, which is
why the 1st fan on the chart multiplies your hand by 8 (2x2x2). The
fans in the chart are only the fans that can be obtained from your
hand.
Multiplier 
Fans 
Final Score (Hand Score x1) (No Rounding Off) 

(+2) 
20 
25 
30 
40 
50 
60 
70 
x8 
1 
160 
200 
240 
320 
400 
480 
560 
x16 
2 
320 
400 
480 
640 
800 
960 
1120 
x32 
3 
640 
800 
960 
1280 
1600 
1920 
2240 
x64 
4 
1280 
1600 
1920 
2560 
3200 
3840 
4480 
x128 
5 
2560 
3200 
3840 
5120 
6400 
7680 
8960 
Multiplier 
Fans 
Final Score (Hand
Score x1) 

(+2) 
20 
25 
30 
40 
50 
60 
70 
x8 
1 


300 
400 
400 
500 
600 
x16 
2 
400 

500 
700 
800 
1000 
1200 
x32 
3 
700 
800 
1000 
1300 
1600 
2000 
2000 
x64 
4 
1300 
1600 
2000 
2000 
2000 
2000 
2000 
x128 
5 
2000 
2000 
2000 
2000 
2000 
2000 
2000 
Multiplier 
Fans 
Final Score
(Hand Score x2) 

(+2) 
20 
25 
30 
40 
50 
60 
70 
x8 
1 


500 
700 
800 
1000 
1200 
x16 
2 
700 

1000 
1300 
1600 
2000 
2300 
x32 
3 
1300 
1600 
2000 
2600 
3200 
3900 
4000 
x64 
4 
2600 
3200 
3900 
4000 
4000 
4000 
4000 
x128 
5 
4000 
4000 
4000 
4000 
4000 
4000 
4000 
Multiplier 
Fans 
Final Score (Hand
Score x4) 

(+2) 
20 
25 
30 
40 
50 
60 
70 
x8 
1 
700 

1000 
1300 
1600 
2000 
2300 
x16 
2 
1300 
1600 
2000 
2600 
3200 
3900 
4500 
x32 
3 
2600 
3200 
3900 
5200 
6400 
7700 
8000 
x64 
4 
5200 
6400 
7700 
8000 
8000 
8000 
8000 
x128 
5 
8000 
8000 
8000 
8000 
8000 
8000 
8000 
Multiplier 
Fans 
Final Score (Hand Score x6) 

(+2) 
20 
25 
30 
40 
50 
60 
70 
x8 
1 
1000 

1500 
2000 
2400 
2900 
3400 
x16 
2 
2000 
2400 
2900 
3900 
4800 
5800 
6800 
x32 
3 
3900 
4800 
5800 
7700 
9600 
11600 
12000 
x64 
4 
7700 
9600 
11600 
12000 
12000 
12000 
12000 
x128 
5 
12000 
12000 
12000 
12000 
12000 
12000 
12000 
Like base score, and how you can only
have a maximum score of 70, your final score cannot exceed a certain
amount as well (only in the case of 5 or less fans that is). The
limit, which is highlighted in gray for each table is, known as Mangan
[満貫].
This is the initial scoring limit.
When you get over 5 fans, then your
base score is no longer calculated, only the amount of fans you have
is of concerned:
Haneman [跳満 or ハネ満] (67 Fans): Final Score is 1.5 times Mangan.
Baiman [倍満] (810 Fans): Final Score is 2 times Mangan.
Sanbaiman [三倍満]
(1112 Fans): Final Score is 3 times Mangan.
When you reach 13
fans or more, then you have obtained Yakuman. Getting certain
tile combinations or hands can automatically give you Yakuman as
well:
Yakuman [役満] (1325 Fans): Final Score is 4 times
Mangan.
Double Yakuman [ダブル役満]
(2638 Fans): Final Score is 2 times Yakuman.
Triple Yakuman... and so forth.
The highest attainable score in mahjong is Yakuman
times Seven. 
REACH
STICKS 
As you probably know by now,
each time you declare Reach, a Reach stick is placed on the table. Reach
sticks can be though of as money chips used in mahjong similar to the circular
colored chips used everywhere else like in gambling casinos. The
value of each stick depends on the arrangement and number of
dots in the center of the stick as shown below:
100 pts
1000 pts
5000 pts
10000
pts
When you declare Reach, you place a 1000 points stick on the table. Basically, you place a wager each time you declare Reach. 1000 points are taken from your score whenever you declare it. If you win the round, you are rewarded with an additional fan for scoring and you regain your 1000 points back. If you lose, the wager is taken from you. For some games, you can still declare Reach even if you have a score less than 1000 points. In this situation, your score would drop to a negative number after declaring Reach.
If the opponent declares Reach during the round, and you happen
to win the round, the 1000 points that the opponent wagered for
Reaching will be given to you. You receive a 1000 points bonus in
your final score. And vice versa.
However, say that both of you declare Reach during the round, but
neither of you wins the round. In this case, the sticks do not
disappear but carry on into the next round until someone has the opportunity
to take them by winning. 
BONUS
POINTS 
You receive bonus points for each stick placed on
table. There are two different sticks that can be place on the table
depending on certain situations as explained below:
Dealer's Counter:
The Dealer's Counter represents the number of rounds
the dealer remains dealer. It starts out as zero. If the dealer stays
dealer for the next round the counter goes up by one. If the dealer
remains dealer again for the next round after that, the counter would
go up one more and become 2.
A 100point stick is placed on the table each time the
dealer stays dealer for the next consecutive round. So basically, the
counter also corresponds with the number of 100point sticks placed on
table.
A 300 point bonus is rewarded to the winning
player for each stick on table. In most games, the bonus is 300
points, however in some, the bonus is 1000 points.
Note that when the counter reaches 5 and up, the
dealer may or may not be required to have at least 2 Yakus in their hand in order to go out
instead of 1.
The counter resets when the other player becomes dealer. It
resets to zero only if the nondealer becomes dealer by winning the
round.
Draw Game Situations:

Dealer stays dealer if dealer has Tenpai at the
end of the round. The counter goes up by one.

Dealer does not stay dealer if dealer has Noten
at the end of the round. The nondealer becomes the new dealer.
The counter resets not to zero but to 1.
Reach Counter:
The Reach Counter
represents the number of 1000point sticks on table. A stick is placed
on table each time someone declares Reach as explained above. If a
player wins the round, a 1000 point bonus is given for each
stick. Reach sticks are carried on to the next round if no one wins
that given round.
The counter resets to zero when a player wins
and takes all the Reach sticks on table as bonus. 
SIDE NOTES 
 At the start of a match, for most mahjong games,
each player has a certain amount of points. Usually you start off
with 1000 points. The opponent usually starts off with an initial score
that is higher than yours. Each new opponent you face after will
usually have an initial score
that is more than the previous opponent.
 When you win a round, your hand is calculated as mentioned
above. Your total score is added to your own score, and the same
amount is deducted from the opponent's score. The same applies the
other way around. Often times, in order to win a match, you must
decrease the opponent's score to zero or below. You lose when your
score drops to zero or less as well.  If the round ends in a draw, points may or may not be rewarded
depending on the hands of each player. If you have Tenpai and the
opponent has Noten, then you are rewarded 1000 points while the
opponent is deduced the same amount. If you have Noten and the opponent has
Tenpai, then you are deduced 1000 pts while the opponent gets 1000
pts. If both players have Tenpai or if both have Noten, then no
points are rewarded to no one. Note also that in some games, the
bonus for Tenpai may not be 1000 pts, but 1500 pts. 
SCORING
EXAMPLES 
All examples are based on the scoring found in Final Romance 2. Note
that the scoring multiplier in this game is
Type C. This means that if you are dealer, you multiply your hand
score by 6 to get your final score. If you are nondealer, you
multiply your hand score by 4 to get your final score. Note also that these scores only reflect the value of the hand and does not include bonus points that can be obtained by being dealer or from Reach sticks on the table.


Example 1:
I was nondealer and won by Ron. Calculate Base Score: 20 pts for winning.
+10 pts for going out by Ron
+4 pts for Concealed Pon of Simples
+4 pts for Concealed Pon of Simples
+16 pts for Concealed Kong of Simples
Total = 54 pts
Base Score = 60 pts (Round Up) Calculate Fans Received:  Reach [1 Fan]
 One Shot [1 Fan]
 Tanyao (All Simples) [1 Fan] Total = 3 Fans (+2 for winning) Calculate Final Score (Method 1): Base score is doubled for each Fan. Score after doubling is Hand
Score. Hand Score = 60 x2 x2 x2 x2 x2 = 1920 pts Multiply Hand Score by 4 since I was nondealer to get Final
Score. Final Score = 1920 x4 = 7680 pts
Final Score = 7700 pts (Round up) Calculate Final Score (Method 2): 60 pts / 3 Fans Find final score from the scoring chart above (Look at the 4th
chart). Multiplier for hand score is 4x since I was nondealer. Final Score = 7700 pts (From Charts) Notes: I received 3 fans for my hand, plus I get 2 extra fans just for
winning. That adds up to a total of 5 fans. Though, remember that
when you look at the scoring charts above, you do not take into
account the 2 bonus fans, but only the ones that you make in your
own hand. I get +4 pts for having a Pon of Simples twice. One was for the Pon
of 4character and the other was for the Pon of 6character. The Kong in my hand is not revealed, but concealed. Remember that
you have to declare Kong whenever you make one in order to draw a
new tile. 


Example 2:
I was dealer and won by Ron. Calculate Base Score: 20 pts for winning.
+10 pts for going out by Ron
+2 pts for Revealed Pon of Simples
Total = 32 pts
Base Score = 40 pts (Round Up) Calculate Fans Received:  Reach [1 Fan]
 2 Same Chi (334455) [1 Fan] Total = 2 Fans (+2 for winning) Calculate Final Score (Method 1): Base score is doubled for each Fan. Score after doubling is Hand
Score. Hand Score = 40 x2 x2 x2 x2 = 640 pts Multiply Hand Score by 6 since I was dealer to get Final
Score. Final Score = 640 x6 = 3840 pts
Final Score = 3900 pts (Round up) Calculate Final Score (Method 2): 40 pts / 2 Fans Find final score from the scoring chart above (Look at the last chart). Multiplier for hand score is
6x since I was dealer. Final Score = 3900 pts (From Charts) Notes: The Pon of 6bamboo is revealed since I made the set with a
discarded tile when I declared Ron. However, the entire hand is
still considered concealed. 


Example 3:
I was dealer and won by Ron. Calculate Base Score: 20 pts for winning.
+4 pts for Revealed Pon of Terminals
+2 pts for Pair of Dragons
Total = 26 pts
Base Score = 30 pts (Round Up) Calculate Fans Received:
 Clean Hand [2 Fans] Total = 2 Fans (+2 for winning) Calculate Final Score (Method 1): Base score is doubled for each Fan. Score after doubling is Hand
Score. Hand Score = 30 x2 x2 x2 x2 = 480 pts Multiply Hand Score by 6 since I was dealer to get Final
Score. Final Score = 480 x6 = 2880 pts
Final Score = 2900 pts (Round up) Calculate Final Score (Method 2): 30 pts / 2 Fans Find final score from the scoring chart above (Look at the last chart). Multiplier for hand score is
6x since I was dealer. Final Score = 2900 pts (From Charts) Notes: Instead of 3 fans, I only get 2 fans for having a Clean Hand
combination since my hand was revealed.



Example 4:
I was dealer and won by Ron. Calculate Base Score: 20 pts for winning.
+10 pts for going out by Ron
+4 pts for Concealed Pon of Simples
+32 pts for Concealed Kong of Terminals
Total = 66 pts
Base Score = 70 pts (Round Up) Calculate Fans Received:  Double Reach [2 Fan]
 Dora (2character tile) [1 Fan] Total = 3 Fans (+2 for winning) Calculate Final Score (Method 1): Base score is doubled for each Fan. Score after doubling is Hand
Score. Hand Score = 70 x2 x2 x2 x2 x2= 2240 pts Multiply Hand Score by 6 since I was dealer to get Final
Score. Final Score = 2240 x6 = 13400 pts
Final Score = 12000 pts (See notes) Calculate Final Score (Method 2): 70 pts / 3 Fans Find final score from the scoring chart above (Look at the last chart). Multiplier for hand score is
6x since I was dealer. Final Score = 12000 pts (From Charts) Notes: If I have less than 5 fans, then my score cannot exceed the
Mangan scoring limit. I received a score of 13400 pts, but Mangan is
12000 pts. As a result, my score drops to 12000 pts.



Example 5:
I was nondealer and won by Tsumo. Calculate Fans Received:  Tsumo with Concealed Hand [1 Fan]
 2 Same Chi (556677) [1 Fan]
 Fanpai (Pon of Red Dragons) [1 Fan]
 Clean Hand [3 Fans]
 2 Doras (Two 6dot tiles) [2 Fans] Total = 8 Fans = Baiman Final Score = 16000 pts Notes: Remember that hand scores are no longer calculated once you go
over the 5 fan initial limit. Baiman is 2x Mangan. Mangan in this case was 8000 since I was
nondealer. Mangan would be 12000 if I was dealer.



Example 6:
I was nondealer and won by Tsumo. Calculate Fans Received:  Reach [1 Fan]
 One Shot [1 Fan]
 Tsumo with Concealed Hand [1 Fan]
 Tanyao (All Simples) [1 Fan]
 Pinfu (All Chi) [1 Fan]
 Sanshoku Doujun (3 Chi of Same Number Sequence) [2 Fans] Total = 7 Fans = Haneman Final Score = 12000 pts Notes: Haneman is 1.5x Mangan. Mangan in this case was 8000 since I was
nondealer. Mangan would be 12000 if I was dealer.



Example 7:
I was nondealer and won by Ron. Calculate Fans Received:  Fanpai (Pon of South Wind and Kong of Green Dragon) [2 Fans]
 Honroutou (All Pons of only Terminals and Honors) [2 Fans]
 All Pons [2 Fans]
 3 Concealed Pons [2 Fans]
 Clean Hand [3 Fan] Total = 11 Fans = Sanbaiman Final Score = 24000 pts Notes: Remember that Kongs can be considered as Pons when calculating
Yakus. Though, it does not work the other way around. Sanbaiman is 3x Mangan. Mangan in this case was 8000 since I was
nondealer. Mangan would be 12000 if I was dealer. 


Example 8:
I was dealer and won by Ron. Calculate Fans Received:  Thirteen Orphans [1 Yakuman] Total = 1 Yakuman Final Score = 48000 pts Notes: Yakuman is 4x Mangan. Mangan in this case was 12000 since I was
dealer.



Example 9:
I was dealer and won by Tsumo. Calculate Fans Received:  All Terminals [1 Yakuman]
 4 Concealed Pons [1 Yakuman] Total = 2 Yakuman Final Score = 96000 pts Notes: Double Yakuman is 8x Mangan. Mangan in this case was 12000 since I was
dealer.

