The Times Super Fiendish Su Doku Book 6 : 200 Challenging Puzzles from the Times

Опис

These are previously unpublished quality Su Doku grids from The Times, and help to develop you to take on Extreme Su Doku.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

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