R Mahjong is Japanese Mahjong with strong mahjong AI.

1. Strong mahjong AI based on neural networks. This AI is stronger than 99.7% of mahjong players on tenhou.net
2. Training mahjong game mode with hints from the AI.
3. Detailed mahjong game statistics.
4. Record and replay the game (step by step and automatic mode). View from the perspective of any of the players.
5. The game in the local network (via Wi-Fi). You can play with any combination of people and bots.
6. Support for multiple interface languages (English and Japanese).