Sudoku is a proven method for kids to improve their memory and increase concentration levels whilst having fun at the same time! Inside this 300 Sudoku Puzzle Book you will find: 100 Easy Puzzles: The gentle taster into the world of Sudoku 100 Medium Puzzles: The perfect mix between fun and challenging 100 Hard Puzzles: The final challenge for the really clever kids Each puzzle is in a large print 9x9 format with answers at the end of each section Click the BUY BUTTON now and give your kids the gift of education AND fun!