@ Number Input Area: Enter your own number here.
A [Verify] button: Start verifying your own content.
B Diagonal rule switch: Apply a rule in which 1 to 9 enter on the diagonal.
after startup, the gNumber Input Areah will be all "?".
same number in the same position, based on your own number place, in the
"Number Input Area".
@FThe entered numbers are displayed in black.
AFNumbers derived from entered numbers are displayed in gray.
entering all the numbers, it is judged by clicking the [Verify] button.
EWhen the judgment result is complete (one solution can be derived), the dialog displays that effect.
EUnfinished (when there is more than one solution), there is a lack
of self-made numbers, so let's revise.
EIf there is a contradiction, correct it because there is a
deficiency in your own numbers.
EIn diagonal mode, the background color of diagonal cells is colored.