2015年2月27日

2015年2月27日
Sudoku Board

Do you know Sudoku? If you like Sudoku, the most powerful Sudoku has come!From simple mode to medium mode, even to expert mode.Exam are all randomly g …
1967Cam

"There is a profound and enduring beauty in simplicity, in clarity, in efficiency. True simplicity is derived from so much more than just the absence …