Sudoku Puzzle Book: The Ultimate Sudoku Challenge

WHAT IS A SUDOKU PUZZLE A classic sudoku puzzle is made up of a 9-by-9 grid with nine 3-by-3 sub-grids called boxes. There are 9 rows, 9 columns and 9 boxes in every puzzle. The object of the game is to fill all squares in the grid with the correct number. The rules are: -Every row, column and box must contain all the digits 1 to 9. -Each number can only appear once in every row, column or box. Every puzzle has only one correct solution There are 50 difficult level puzzles - only for those who dare to take the challenge Are you a problem solver? Have you got the brainpower to solve these fiendishly difficult puzzles?. All the Best There are 50 blank pages in the book for you to make notes and scrabble