Riichi Mahjong Scoring Drill: iPhone vs Android

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.

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.

This app was featured in the lead article "Recommended! Carefully Selected Mahjong Apps" in the June 2020 issue of Takeshobo's "Modern Mahjong" magazine.

[Version 2.0.0 Renewal Announcement]
Thank you for your continued use of our app.

We have completely renewed the app.

The screen design has been revamped, and we have added support for portrait mode, which was a frequently requested feature. Landscape mode is still available.

Your previous scores, settings, and personal bests will be carried over.

Thank you for your continued support.

[App Introduction]
This is a problem collection app specializing in Mahjong score calculation, with a total of 12,175 questions.

All questions are taken from winning patterns that have appeared in actual games.

You can repeatedly practice practical score calculations through various actual winning patterns.

With a wide range of settings, you can practice according to your purpose, from calculating fu (points) to calculating han (scoring units) and the final winning score.

In the 10-question time attack mode, you can compete against players nationwide and challenge the rankings. Improve your calculation speed and accuracy to aim for the top!

From beginners building a strong foundation to intermediate players reviewing their knowledge, you can master score calculation with practice tailored to your level.

【Features】

・Easy operation with just a tap, allowing for fast-paced practice.
・Includes 12,175 questions based on winning patterns that have appeared in actual games.
・Can be practiced in both portrait and landscape modes.
・10-question time attack to train your calculation speed and accuracy.
・Submit your time attack records to the rankings and compete with players nationwide (last 30 days / all periods).
・After answering, you can check the breakdown of points (base points, additional points for closed hands, points for melds and pairs, etc.) and the points before rounding up.
・Answer methods can be selected from "Actual score," "Quick reference score," and "Call format (1000-2000, 1300 all)."
・A wide range of settings allows for the following types of practice:
　"Specific questions" "I want to solve these problems repeatedly."
"I want to practice calculating only the number of points first."
"I want to focus on complex point calculations of 50 points or more."
"I want to answer with the point value before rounding up and check if I can calculate accurately."
"I want to be able to read the dora tiles myself from the dora indicator tiles."
* You can check your proficiency level from your overall correct answer rate, correct answer rate for the last 30 questions, and longest consecutive correct answer count.
* You can refer to the score quick reference chart and list of winning hands at any time.
* It includes a "Problem Review" function that allows you to review problems you have solved by specifying the problem number.

[About the Rules]
For rules that differ depending on the rules adopted, such as loca

'26/9/27 - Ver.2.1.4
10問タイムアタックに全国ランキングを追加しました。

・タイムアタックを終えたら、名前を入れて記録をランキングに送れるようになりました
・「直近30日」と「全期間」のランキングを切り替えて見られます
・練習モード選択の「ランキング」から、いつでもランキングを見られます
・ランキングの対象は、練習内容・問題数・出題範囲・出題順・ルールがデフォルトの設定のときです
・最新のAndroidに対応しました
・UIの調整を行いました

'26/9/20 - Ver.2.0.1
本アプリの全面的なリニューアルを行いました（縦画面への対応、画面と操作の一新、ドラ表示牌での出題、タイムアタックを10問に統一）。