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.
"Happy New Year !"
Solution code: Row 9, followed by column 9.
on 2. January 2011, 19:15 by zhergan
Nice celebration for year 2011:) Once more happy new year to all;)
on 2. January 2011, 18:01 by Fred76
Sorry for the 0 in R6C8. It's a bubble of champagne that got away.