Killer sudoku is similar to the other levels in that each of the numbers 1-9 must fit into each 9-by-9 square. No number can be repeated more than once in the square or in a horizontal or vertical row ...

The new digital Mini Crossword – which launches today and joins our popular puzzles Target Time, Sudoku and the Quick and Cryptic crosswords – is destined to become your favourite daily ritual. Herald ...

Killer sudoku is similar to the other levels in that each of the ... Instead, you are given groups of numbers in what’s known ...