_ 1 _ | _ 7 8 | _ 9 3
_ 3 7 | _ _ 1 | _ 8 5
_ 8 6 | _ _ 3 | 2 1 7
-------|--------|--------
_ 6 3 | 8 1 9 | 5 7 2
1 _ 9 | _ _ 5 | _ 3 _
8 _ 5 | _ 3 _ | _ 6 _
-------|--------|--------
6 _ 8 | 1 2 7 | 3 5 9
3 5 _ | 9 8 _ | 7 2 _
7 9 2 | 3 5 _ | _ 4 _

_ 1 _ | _ 7 8 | _ 9 3
_ 3 7 | _ _ 1 | _ 8 5
_ 8 6 | _ _ 3 | 2 1 7
-------|--------|--------
_ 6 3 | 8 1 9 | 5 7 2
1 _ 9 | _ _ 5 | _ 3 _
8 _ 5 | _ 3 _ | 9 6 _
-------|--------|--------
6 _ 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 _ | 7 2 _
7 9 2 | 3 5 _ | _ 4 _

_ 1 _ | _ 7 8 | _ 9 3
_ 3 7 | _ _ 1 | _ 8 5
_ 8 6 | _ _ 3 | 2 1 7
-------|--------|--------
_ 6 3 | 8 1 9 | 5 7 2
1 _ 9 | _ _ 5 | _ 3 _
8 _ 5 | _ 3 _ | 9 6 _
-------|--------|--------
6 4 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 4 | 7 2 _
7 9 2 | 3 5 _ | _ 4 _

_ 1 4 | _ 7 8 | _ 9 3
_ 3 7 | _ _ 1 | _ 8 5
_ 8 6 | _ _ 3 | 2 1 7
-------|--------|--------
4 6 3 | 8 1 9 | 5 7 2
1 _ 9 | _ _ 5 | _ 3 _
8 _ 5 | _ 3 _ | 9 6 _
-------|--------|--------
6 4 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 4 | 7 2 _
7 9 2 | 3 5 _ | _ 4 _

_ 1 4 | _ 7 8 | 6 9 3
_ 3 7 | _ _ 1 | 4 8 5
_ 8 6 | _ _ 3 | 2 1 7
-------|--------|--------
4 6 3 | 8 1 9 | 5 7 2
1 _ 9 | _ _ 5 | _ 3 _
8 _ 5 | _ 3 _ | 9 6 _
-------|--------|--------
6 4 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 4 | 7 2 _
7 9 2 | 3 5 _ | _ 4 _

_ 1 4 | _ 7 8 | 6 9 3
_ 3 7 | _ _ 1 | 4 8 5
_ 8 6 | _ _ 3 | 2 1 7
-------|--------|--------
4 6 3 | 8 1 9 | 5 7 2
1 _ 9 | _ _ 5 | _ 3 _
8 _ 5 | _ 3 _ | 9 6 _
-------|--------|--------
6 4 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 4 | 7 2 6
7 9 2 | 3 5 6 | _ 4 _

_ 1 4 | _ 7 8 | 6 9 3
_ 3 7 | _ _ 1 | 4 8 5
_ 8 6 | _ _ 3 | 2 1 7
-------|--------|--------
4 6 3 | 8 1 9 | 5 7 2
1 _ 9 | _ _ 5 | _ 3 _
8 _ 5 | _ 3 _ | 9 6 1
-------|--------|--------
6 4 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 4 | 7 2 6
7 9 2 | 3 5 6 | 1 4 _

_ 1 4 | _ 7 8 | 6 9 3
_ 3 7 | _ _ 1 | 4 8 5
_ 8 6 | _ _ 3 | 2 1 7
-------|--------|--------
4 6 3 | 8 1 9 | 5 7 2
1 _ 9 | _ _ 5 | _ 3 _
8 _ 5 | 4 3 2 | 9 6 1
-------|--------|--------
6 4 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 4 | 7 2 6
7 9 2 | 3 5 6 | 1 4 _

_ 1 4 | _ 7 8 | 6 9 3
_ 3 7 | _ _ 1 | 4 8 5
_ 8 6 | _ 4 3 | 2 1 7
-------|--------|--------
4 6 3 | 8 1 9 | 5 7 2
1 2 9 | _ _ 5 | _ 3 _
8 _ 5 | 4 3 2 | 9 6 1
-------|--------|--------
6 4 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 4 | 7 2 6
7 9 2 | 3 5 6 | 1 4 _

_ 1 4 | _ 7 8 | 6 9 3
_ 3 7 | _ _ 1 | 4 8 5
_ 8 6 | _ 4 3 | 2 1 7
-------|--------|--------
4 6 3 | 8 1 9 | 5 7 2
1 2 9 | _ _ 5 | _ 3 _
8 7 5 | 4 3 2 | 9 6 1
-------|--------|--------
6 4 8 | 1 2 7 | 3 5 9
3 5 1 | 9 8 4 | 7 2 6
7 9 2 | 3 5 6 | 1 4 8