Collins Bumper Book of Su Doku book 1 : 300 Su Doku Puzzles

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Lose yourself with these challenging number puzzlesPacked full of 300 Su Doku puzzles to test your mental dexterity, powers of logic and deduction. You will find 100 easy, 100 medium and 100 hard puzzles in this collection so you can monitor your progression through the difficulty levels.Keep your mind sharp and test your powers of deductive reasoning. Ideal for whiling away the time while travelling, on holiday or relaxing at home.You will find the solutions at the back of the book.