sudoku
How to play:
Every digit from 1 to 9 must appear in each of the nine vertical columns, in each of the nine horizontal rows, and in each of the nine boxes. Solutions, tips and a computer programme can be found at
How to play:
Every digit from 1 to 9 must appear in each of the nine vertical columns, in each of the nine horizontal rows, and in each of the nine boxes. Solutions, tips and a computer programme can be found at