1.
5 3 _ | _ 7 _ | _ _ _
6 _ _ | 1 9 5 | _ _ _
_ 9 8 | _ _ _ | _ 6 _
———————
8 _ _ | _ 6 _ | _ _ 3
4 _ _ | 8 _ 3 | _ _ 1
7 _ _ | _ 2 _ | _ _ 6
———————
_ 6 _ | _ _ _ | 2 8 _
_ _ _ | 4 1 9 | _ _ 5
_ _ _ | _ 8 _ | _ 7 9
2.
_ _ 3 | _ 2 _ | 6 _ _
9 _ _ | 3 _ 5 | _ _ 1
_ _ 1 | 8 _ 6 | 4 _ _
———————
_ _ 8 | 1 _ 2 | 9 _ _
7 _ _ | _ _ _ | _ _ 8
_ _ 6 | 7 _ 8 | 2 _ _
———————
_ _ 2 | 6 _ 9 | 5 _ _
8 _ _ | 2 _ 3 | _ _ 9
_ _ 5 | _ 1 _ | 3 _ _
3.
8 5 _ | _ _ 2 | 4 _ _
7 2 _ | _ _ _ | _ _ 9
_ _ 4 | _ _ _ | _ _ _
———————
_ _ _ | 1 _ 7 | _ _ 2
3 _ 5 | _ _ _ | 9 _ _
_ _ _ | 3 4 8 | _ _ _
———————
_ _ _ | _ _ _ | 1 _ _
9 _ _ | _ _ _ | _ 3 4
_ _ 7 | 2 _ _ | 6 _ _
4.
_ 2 _ | _ 8 _ | _ 3 _
3 _ 9 | _ _ _ | 6 _ _
_ _ 1 | _ 6 _ | _ 9 5
———————
_ 6 _ | 1 _ 9 | _ _ _
_ _ 7 | _ _ _ | 5 _ _
_ _ _ | 8 _ 5 | _ 6 _
———————
6 9 _ | _ 5 _ | 7 _ _
_ _ 5 | _ _ _ | 1 _ 6
_ 8 _ | _ 3 _ | _ 2 _
5.
_ 5 _ | _ 2 _ | _ 6 _
4 _ 9 | _ _ _ | 7 _ _
_ _ 1 | _ 6 _ | _ 9 5
———————
_ 6 _ | 1 _ 9 | _ _ _
_ _ 7 | _ _ _ | 5 _ _
_ _ _ | 8 _ 5 | _ 6 _
———————
6 9 _ | _ 5 _ | 7 _ _
_ _ 5 | _ _ _ | 1 _ 6
_ 8 _ | _ 3 _ | _ 2 _