Follow Sudoku rules, except that the digits 0-8 in trinary (00, 01, 02, 10, 11, 12, 20, 21, 22) will be used instead of the numbers 1-9. Givens may be the first, second or both digits of the final number. When only one digit is given, it should be clear which digit (the first or second) is the one given.
"ZigZag"
Solution code: column 5, followed by column 8.
on 2. January 2011, 00:58 by zhergan
Very nice constructed! Thanks Fred:)
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