Players need to according to 9 x 9 known figures on the disk surface, reasoning out all the rest of the space, and satisfy each row, every column, every house Numbers are thick line with 1-9, dont repeat.
Sudoku disk is a jiugong, each palace is divided into nine little. In eighty-one, under the condition of given certain known number and problem solving using logic and reasoning, in the other Spaces fill in the Numbers 1-9. 1-9 every number in each row, every column and every court only once