[Quiz configuration]
Each 5 questions until the problem A ~ J, a total of 50 questions, the time limit of 20 seconds, an alternative formula
From problem A ~ as simple for beginners to the J, so we mixed up esoteric problem of enthusiasts, it does not matter conducted from anywhere.
So is free, you will be asked to download feel free to, so you can also comparison of the person and friends and the knowledge of your family, I hope you enjoy.
The developer of this app is authenticated to the official developers of androiders as a developer of safe and secure application.
https://androider.jp/developer/519092048a0db84a09c5527954e85ce1/
機能追加
日本語表記を英語表記に修正