R Mahjong is a riichi mahjong app with powerful artificial intelligence. Currently R Mahjong is only available for the Android platform. You can get it on Google Play.

The main features of R Mahjong version 1.0 are:

R Mahjong has two main modes of operation: local game mode and network game mode.
In the local game mode, players can play with three AI bots.
In the network game mode, you can play mahjong with other players via Wi-Fi.
In network game mode, you can play with any combination of people and bots. Missing players will be replaced by bots.
The function of recording and replaying a played game is available.
For more details, see the article: Version 1.0 of R Mahjong, a riichi mahjong app, has been released

Although R Mahjong has an intuitive interface, adding new features leads to its gradual complication. This is especially true for network games.
To help players quickly get used to the game interface, the R Mahjong wiki has been created (in Japanese).
The R Mahjong wiki shows how to work with the R Mahjong interface.

Version 2.0 has been released. Main features of this version:
1. R Mahjong is now equipped with a strong mahjong AI based on neural networks. The training mode in R Mahjong is a powerful method for improving your mahjong.In this mode, players can see their opponents' hands and AI hints.
2. R Mahjong now has an unparalleled system for collecting and analyzing game statistics. Not only the player’s game statistics are available, but also the game statistics of opponents, including AI.
For more details, see the article: Version 2.0 of R Mahjong, a riichi mahjong app, has been released.

An article dedicated to AI for mahjong has been published.
The article describes the history of the development of mahjong AI, as well as some technical details of the strong mahjong AI created for R Mahjong.
The strength of the created AI when playing against the Akochan AI was evaluated.
For more details, see the article: Strong Riichi Mahjong AI

An article was published about how SUO plays.
The article states that recordings of SUO games with each other are available online. Links to these entries are provided.
For more details, see the article: How SUO plays

Strong AI in R Mahjong (Mahjong Improvement Method)

What are the benefits of powerful Mahjong AI?
To improve your mahjong game, you need strong opponents. Why is this so?
Advantages of the R Mahjong app
R Mahjong has a training mode.
Why is this mode needed and what is special about it?
For more details, see the article: Strong AI in R Mahjong (Mahjong Improvement Method)

Game statistics in R Mahjong

This system of collecting and displaying statistics is unrivaled.
What makes it so unique?
What benefit can be derived from the statistics of games played?
What statistics does the R Mahjong application provide?
For more details, see the article: Game statistics in R Mahjong

We have created the 麻雀AI channel on which we will post a video of the SUO playing mahjong.

We have created another video channel where we will also post video games of AI SUO