Riichi Mahjong Helper

No need to input Mahjong tiles one by one manually.

Riichi Mahjong Helper is an app that uses AI image recognition to identify your tiles when you take a photo of your hand along the on-screen guide. It helps you easily check your waits (machi) and calculate your winning scores.

■ Key Features
· AI image recognition-based Mahjong tile detection
· Check the Tenpai status of your photographed hand
· Display winning waits (machi) when in Tenpai
· Calculate Yaku, Han, Fu, and the score for winning hands
· Distinguish between Tsumo and Ron
· Support for open tiles (calls) like Chii, Pon, and Kan
· Replace incorrectly recognized tiles
· Manually add unrecognized tiles
· Delete falsely detected tiles

■ How to Use

Select "Check Tenpai" or "Calculate Score".

Align your Mahjong tiles according to the shooting guide on the screen.

Take a photo of your hand and check the recognized tiles.

If any tiles are recognized incorrectly, manually replace or add them.

View your Tenpai status and waits, or your final winning score.

■ How to Photograph for Score Calculation
When calculating a score, please place the winning tile in a separate area to the right of your hand.
· Vertically placed winning tile: Tsumo
· Horizontally placed winning tile: Ron
You can check the final score by inputting additional necessary information such as Prevalent Wind, Seat Wind, Dora, and Riichi status.

■ Displaying Calls and Kan
· Chii or Pon: Place one tile within the set horizontally.
· Ankan (Closed Kan): Place the left and right edge tiles horizontally.
· Kakan and Minkan: Can be directly modified on the recognition result screen after shooting.

■ Correcting Recognition Results
Depending on the shooting environment and tile design, some tiles may be recognized incorrectly.
You can tap to replace incorrectly recognized tiles and manually add missing ones. The status of calls, Kan, and winning tiles can also be modified before the analysis.

■ Recommended For
· Beginners learning Riichi Mahjong
· Those who find it difficult to identify their waits
· Those who are unfamiliar with score calculation
· Those who find it tedious to manually input tiles one by one
· Those who want to quickly check their hand with physical Mahjong tiles

This app is based on the standard rules of Riichi Mahjong.
Please note that AI image recognition results may vary depending on camera angle, lighting, reflections, and tile design. Be sure to verify the recognized tiles before analyzing.