九宫格数独题

问题描述:

九宫格数独题
1xx87x3xx
xxx69xx14
x6xxxx5xx
59xxxx47x
xxxx3xxx5
87x4xxxx6
9x13x2xxx
xx5x1xxxx
x3xxx9xxx

159 874 362
328 695 714
764 123 589
593 286 471
416 937 825
872 451 936
981 342 657
645 718 293
237 569 148