益智类游戏《数独》手机版，在9X9格子中输入1-9的数字，横纵不重复即胜利-Puzzle game " Sudoku" mobile version, enter 1-9 in the 9X9 grid of numbers, not to repeat that victory in horizontal and vertical

数独游戏，利用回溯法，可进行数独求解，生成，简单无图形化源代码(Sudoku , originally called Number Place, is a logic-based, combinatorial number-placement puzzle.)