Push your nerve and logic to the absolute limit with this third collection of The Times Killer Su Doku. The puzzles use the same 9x9 grid as rmal Su Doku but with an added mathmatical challenge. The aim is t only to complete every row, column and cube so that it contains the digits 1-9, it is also necessary to ensure that the outlined cubes add up to the same number.With 150 new Killer Su Doku puzzles, you can ease yourself in with the Moderate before taking the plunge and tackling the real killers:20 Moderate50 Tricky50 Tough30 DeadlyFor those who like to live dangerously and push beyond their mental comfort zone, steel yourself for The Times' toughest collection yet.
The Times is a British daily national newspaper, first published in London in 1785. A daily cryptic crossword is published in the main newspaper, and the Mind Games section in the Times2 supplement contains sudoku, Killer Sudoku, KenKen, word polygon puzzles, and a quick crossword.