Here
is a solution using 2, 7 and 9 in the positions given:
|
2
|
8
|
3
|
|
4
|
6
|
9
|
|
7
|
5
|
1
|
And
here are two other solutions, although there are sixteen possible solutions:
|
2
|
8
|
1
|
|
6
|
4
|
7
|
|
9
|
5
|
3
|
|
2
|
8
|
3
|
|
6
|
4
|
9
|
|
5
|
7
|
1
|
