我是一个数独爱好者，由于不太喜欢多解数独，做这个app是用来检查一个数独是否只有一个解。顺便完成了解数独的功能，希望能够帮到大家。
I am a sudoku lover. Because I am not fond of sudoku with more than one solution, I developed this app in order to examine the uniqueness of solution and facilitate the continued development. I hope the app would be helpful.
Developor: DoubleL
UI: allivare