Download Riichi Mahjong Scoring Drill App V. 2.2.3
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Riichi Mahjong Scoring Drill App V. 2.2.3
by Kentaro Hosokawa
Featured in "Kindai Mahjong" (Takeshobo), a Japanese mahjong magazine, in its June 2020 issue special "Recommended mahjong apps". [About] A question bank app dedicated to Japanese Riichi Mahjong scor - More Info...

Available Since: 2020-01-02
Developer: Kentaro Hosokawa
Seller: Kentaro Hosokawa
Price: 0 USD
Current version: 2.2.3
Last Updated: 2026-10-05

Ratings: 0 out of 5 stars.
Based on 0 reviews. (Rate/Review)
Genre: Games
Filesize: 107.97MB
IOS Bundle ID: com.BarbaroiWare.MahjongScoreDrill
Age Rating: 17+
Languages: EN, JA

Videos: Riichi Mahjong Scoring Drill App Videos

Featured in "Kindai Mahjong" (Takeshobo), a Japanese mahjong magazine, in its June 2020 issue special "Recommended mahjong apps".

[About]
A question bank app dedicated to Japanese Riichi Mahjong scoring, with 12,175 questions.

Every question is a winning hand that appeared in a real game.
Work through a wide variety of real hands and practice scoring the way it happens at the table.

With flexible settings, you can practice exactly what you need: counting fu, counting han, or calculating the final points.

In the 10-question time attack, compete with players around the world on the ranking. Sharpen your speed and accuracy and aim for the top.

From building the basics as a beginner to checking your knowledge as an intermediate player, practice at your own pace and master scoring.

[Features]
- Simple tap-only controls for smooth, quick practice
- 12,175 questions, all based on winning hands from real games
- Play in portrait or landscape
- Train your speed and accuracy with the 10-question time attack
- Submit your time attack records and compete on the ranking (last 30 days / all time)
- After answering, see the fu breakdown (base fu, closed ron, sets and pair, etc.) and the fu before rounding up
- Choose how to answer points: actual points, scoring chart points, or call style (1000-2000, 1300 all)
- Practice the way you want with detailed settings, for example:
"I want to repeat certain questions"
"I want to practice only counting han first"
"I want to focus on complex hands with 50 fu or more"
"I want to answer the fu before rounding to check my calculation"
"I want to work out the dora from the dora indicators myself"
- Check your progress with overall accuracy, accuracy over the last 30 questions, longest streak, and more
- Look up the scoring chart and the yaku list at any time
- "Browse Questions" lets you review any question by its number
- Available in English and Japanese

[Rules]
Where rules differ by local rule set, the app basically follows the ranked-match rules of Tenhou, an online mahjong game.

Main rules (default settings):
- No rounded-up mangan (kiriage mangan off)
- Open tanyao allowed
- Yaku may be completed after calling (atozuke allowed)
- A pair of a double wind is 4 fu
- 13 han or more is a counted yakuman
- No double yakuman
- Tsumo pinfu is 20 fu
- Open pinfu shape is 30 fu
- Chiitoitsu is 2 han 25 fu (no tsumo fu)

Rounded-up mangan, open tanyao and tsumo pinfu can be changed in the app settings.

[Credits]
Illustrations: Mahjong Tofu (麻雀豆腐)
Sound effects: OtoLogic (CC BY 4.0) / Koukaon Jiten (効果音辞典) / Koukaon Lab (効果音ラボ)
Font: Shippori Mincho (SIL Open Font License 1.1)
Icons: Material Symbols (Google / Apache License 2.0)

[Disclaimer]
- The developer is not liable for any damages arising from the use of this app.
- The app's specifications may be changed, revised or updated, and its distribution or service may be suspended or ended without notice.

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