When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku is a fun and addicting logic puzzle game. Sudoku is ideal to introduce your child to inequality signs and logical thinking. Sudoku teaches your child logical thinking and deductive reasoning skills, even at a young age. Sudoku improves critical thinking and making quick decisions based upon available evidence. Sudoku is a brain game that helps to train the brain of your child. In addition, Sudoku demands attention to detail - noticing patterns, spotting opportunities, and finding the right moment to make a move. Sudoku is not only fun and interesting – it might just help prepare your kids for better success in school and in life. Only 1 large print puzzle per page, with lots of white space for scribbling. Daily Sudoku For Kids Mixed Grids Puzzle Calendar 2016 is a collection of 366 puzzle: 38 extreme Sudoku puzzle per grid size (9x9, 8x8, 6x6), totaling 38 extreme puzzle 36 hard Sudoku puzzle per grid size (9x9, 8x8, 6x6), totaling 112 hard puzzle 36 medium Sudoku puzzle per grid size (9x9, 8x8, 6x6), totaling 108 medium puzzle 36 easy Sudoku puzzle per grid size (9x9, 8x8, 6x6), totaling 108 easy puzzle The goal of Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains each number exactly once. I guarantee that every logic puzzle in this Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzle in this book will appear in any of the other English PuzzleBooks.net books. Sudoku is also known as Number Place, Nanpure, Su Doku. Quite often Sudoku is misspelled as Suduko, Soduko, Sodoku, Sudoko, Suduku or Soduku.