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800 Sudoku Puzzles 400 Medium 400 Hard with Solutions at The End of The BookEnjoy hours of fun as you solve these 400 Medium 400 Hard Sudoku problems These little braintwisters will give you hours of challenge and relaxation Improving brain functioning and provide a nice break from it allWhat makes this book so special:SUITABLE FOR ALL LEVELS: from beginner to expert, for adults and kidsLOTS OF SUDOKU PUZZLES: 800INCLUDES SOLUTIONS for each puzzleLARGE PRINT FONT: Puzzles are in large size font, so its to avoid an eyestrain sufferHIGHQUALITY: puzzles are printed on a highquality white paper so you can use pencils or pens without worrying of bleedthroughEASY TO TEAR OUT: wide margin print, so that you may easily tear out any page if you needIts a scientifically proven fact: sudoku puzzles are a proven method to keep the mind in health So, click Add to Cart, train your brain, and keep your mind sharp