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Game statistics in R Mahjong

Feb 28, 2024 | 3 minutes read
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We have already mentioned the system for collecting and displaying game statistics in R Mahjong. This system compares favorably with similar systems in other mahjong applications. In fact, this system of collecting and displaying statistics is unrivaled.

What makes it so unique? First of all, this system reflects literally every aspect of the game of mahjong. But that’s not the main thing. The main thing is that you can get statistics not only of your games, but also of your opponents, including AI. The usefulness of this statistics system is inextricably linked to the presence of strong mahjong AI in R Mahjong.

It is known that many Japanese mahjong servers have systems for collecting complete game statistics. For mahjong professionals, this statistic can tell a lot. However, these statistics are not very useful for beginner mahjong players. They simply have nothing to compare their statistics to. If yaku occurs with a certain frequency, how should this be interpreted? Is it good or bad?

And here we come to the fact that in R Mahjong the player has access to the statistics of a strong Mahjong AI. He has something to compare his statistics with. Taking into account the fact that mahjong AI always plays consistently (AI cannot make unsuccessful moves as a result of, for example, fatigue or inattention) and AI always demonstrates the same level of play, the presence of game statistics of such mahjong AI can hardly be overestimated.

What benefit can be derived from the statistics of games played? Here are some examples. First of all, the player sees his progress in the form of a change in his rating. Players can also see the average number of points scored per game. Isn’t this number of points too low (compared to the same mahjong AI)? The player will also be able to assess whether the percentage of open hands is too high. How often does a player declare riichi? Riichi in mahjong is a very powerful weapon. At the same time, incorrect use of riichi often leads to significant loss of points. It is also possible that you collect some yaku too rarely and others too often. Or the player prefers one tile over another (for example, discarding 9 more often than 1). All these cases require analysis and subsequent adjustment.

What statistics does the R Mahjong application provide? All statistics are divided into groups. Statistics on yaku, tiles and rating are displayed on a separate screen.

MAIN STAT
Hands Played
Riichi Rate
Calling Stat
Lost Hands Rate
Average Value of Hands Won
RANK STAT
Rank Rate 1st (times)
Rank Rate 2nd (times)
Rank Rate 3rd (times)
Rank Rate 4th (times)
Rank Rate Average rank
Top two (1st+2nd place) rate (times)
WIN STAT
Win Rate (times)
    Riichi & Tsumo Rate (times)
    Riichi & Ron Rate (times)
    Damaten & Tsumo Rate (times)
    Damaten & Ron Rate (times)
    Open Hand & Tsumo Rate (times)
    Open Hand & Ron Rate (times)
LOSS STAT
Other player Win Rate (times)
    Percentage of Lost Hands
       Average Points Discharged
DRAW STAT
Exhaustive Draw Rate (times)
    Tenpai Rate at an Exhaustive Draw
RIICHI STAT
Riichi Rate (times)
    Riichi Success Rate (times)
DORA STAT
Average Number of Dora
Average Number of Uradora
CALLING STAT
Chi Rate
Pon Rate
Daiminkan Rate
Kakan Rate
Ankan Rate
YAKU STAT
1 HAN
reach
tanyaochu
menzenchin_tsumoho
ipeko
haku
hatsu
chun
bakaze
jikaze
pinfu
chankan
haiteiraoyue
hoteiraoyui
rinshankaiho
ippatsu
sanshokudojun
ikkitsukan
honchantaiyao
2 HAN
sanshokudojun
ikkitsukan
honchantaiyao
toitoiho
sanshokudoko
honroto
sananko
sankantsu
shosangen
chitoitsu
double_reach
honiso
junchantaiyao
3 HAN
ryanpeko
honiso
junchantaiyao
5 HAN
nagashimangan
chiniso
6 HAN
chiniso
YAKUMAN
kokushimuso
kokushimuso13
suankotanki
suanko
daisangen
shosushi
daisushi
tsuiso
chinroto
ryuiso
churenpoton
churenpoton9
sukantsu
tenho
chiho
TILES STAT
Win Rate Number of Wins Lost Hands Rate Number of Lost Hands
1Man
2Man
3Man
4Man
5Man
6Man
7Man
8Man
9Man
1Pin
2Pin
3Pin
4Pin
5Pin
6Pin
7Pin
8Pin
9Pin
1Sou
2Sou
3Sou
4Sou
5Sou
6Sou
7Sou
8Sou
9Sou
E
S
W
N
P
F
C
RATE GRAPH
F