Not bad but not completely in English..

Good for plaint against AI, doing tsumego, etc.
Problems with messages in Chinese (?) not translated in English. Difficult to understand what is going on. Recurring messages concerning the Game Center.. Freezing of the application when this message appears several times..
More stars when all messages will be translated In English.

pleiade67 about 忘忧围棋—围棋入门围棋人工智能围棋题库, v2.0