Introduction - If you have any usage issues, please Google them yourself
In 9 cells wide × 9 grid of large squares in the high nine 3 grid has width × 3 grid of small squares high and provide a certain number of figures. Based on these figures, the use of logic and reasoning, in other fill in the spaces on the figures 1-9. Each number in each of the small squares should not occur within the same figures, each figure in each row, each column can not appear as figures. This game only need logical thinking ability, nothing to do with digital computing. Although the play is simple, but the figure is the arrangement of the ever-changing, many educators think Sudoku is a good way to exercise their brains