Challenge yourself at home with word and number puzzles 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previously unpublished quality Su Doku grids from The Times, and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 puzzles. Guaranteed to provide hours of
mind-stretching entertainment.
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