This puzzle uses nine separate positive whole numbers.
But they are not the usual 1 to 9 (although some of them might be).
The standard sudoku rules apply.
Each row, column and nonet (3 by 3 box) contains each cell value exactly once.
There are no repeated values in any product area.
The product marked A, starting at R6C1 is not given, but it is smaller than 123,456,789.
Colours on the puzzle are only used to make the product areas easy to see.
The colours have no other significance at all.
Although the puzzle is marked evil, no advanced Sudoku techniques are required.
No high-precision arithmetical work is necessary.
No computer programs are required.
This puzzle could be solved using pen and paper, but use of a spreadsheet will save time.
Why not print it and give it a go? Or save it to look at later.
Please click here for contact and product details.
See the link above for the solution.
Let me know how you get on.