column 5 rows 1 & 3 can be empty, but it then must have a number in row 2)Ħ. No column can be completely blank over the 3 rows (e.g. column 1 will contain numbers 1-9, column 2 will contain number 10-19, and so on, until you get to column 9 which will contain numbers 80-90)ĥ.
Each column has a specified range of numbers (e.g.
Each ticket comprises of 3 rows of 9 columns (totaling 27 boxes)Ĥ.