Each run of numbers must add up to the answer given in the corresponding box and no number can be in the same run twice. Readers use logic and mental...
Most people are now familiar with Sudoku. Each square and each row must contain the numbers one to nine. Players use logic to work out where the numbers must go...
A Giant Sudoku with a twist. Each square and each row must contain the numbers one to nine and the letters K to Z. Players use logic to work out...
