It is an application to learn a sense of stepping stones go .There is no correct answer in the early stages , but it does have the correct points to be paid attention .And learning over again , please wear a sense of strategic move .It will not be three months questions If you answer to the first problem .It is questions after a few minutes and incorrect .It is on the final one hour after you correct the problem .And , it is on the final 24 hours after you correct the problem .And , it is on the final two days later when you correct the problem .And , it is on the final four days later when you correct the problem .And , it is on the final six days after you correct the problem .And , it will be questions after 8 days when you correct the problem .And , it is on the final after 10 days and correct the problem .And , it is on the final after 15 days if you correct the problem .And , it is on the final a month later when you correct the problem .And , it is on the final three months after you correct the problem .It is also from the beginning when you " incorrect " way .Remarks are not displayed .Please think on their own compared to the reference view , why there whether good .