Question

数独（每列每行数字不重复）384215842473837

Answer 1

3 5 8 4 6 2 7 1 9

7 9 1 3 5 8 2 6 4

2 4 6 1 7 9 3 8 5

6 8 3 9 4 5 1 7 2

1 2 9 6 3 7 5 4 8

5 7 4 8 2 1 9 3 6

4 6 5 2 1 3 8 9 7

9 1 7 5 8 4 6 2 3

8 3 2 7 9 6 4 5 1