These are previously unpublished quality Su Doku grids from the puzzle providers to The Times, and help to develop you to take on Extreme Su Doku. The 200 puzzles in this collection of treacherously difficult puzzles will stretch even the most advanced Su Doku enthusiast. You will need to use all of your best solving techniques to get to the end of this testing challenge. The puzzles in the collection are of the highest quality and are perfect for the advanced solver in need of a constant supply of ultra-difficult puzzles. Guaranteed to provide hours of mind-stretching entertainment.
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.