Rotate right and sudoku checker

[magic ingot]

I got the first part with a 9x9 matrix rotating right

[inland crystal]

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[magic ingot]

This is my output

I need it to look like this

[somber basin]

in other words, you're not making a checker but a solver

or a generator?

except it's generating solved sudokus

[ashen arrow]

@magic ingot Please don't make multiple posts.

[inland crystal]

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