Sudoku challange 2
2006-06-29
In the diagram (click to see the full image), try to determine the value of the 2 red squares. Which is 5, and which is 9? Try your best to do it in mind, without the aid of any sudoku program or pen (including pencil or whatever). Only use other tools if you give up. Once the 2 aforementioned squares are determined, the rest will be as easy as a pie.
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