_ 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 | 7 _ 5 | 8 3 4
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

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

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

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

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


Und gleich das neue:

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

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