Introduction - If you have any usage issues, please Google them yourself
In the big scratchable latex of 9* 9 grid has nine 3 x3 grid scratchable latex, and provide a certain number of Numbers.According to these figures, the use of logic and reasoning, in the other Spaces fill in the Numbers 1 to 9.Every number can only appear once in each small scratchable latex, every number in each row, each column also can appear only once.