Ten Thousand Sudoku Puzzles

The most comprehensive Sudoku book ever made. Inside .. * A life time supply of Sudoku puzzles * Easy puzzles, you can breeze through for fun * The most mind boggling ones, that can make you pull out your hair * Two dimensions of rating the puzzles * Holes - higher the holes, greater the length of the puzzle * Difficulty - harder the difficulty, harder are the techniques required to solve the problems * High on holes & difficulty rating - thats where the world comes to an end & the real Sudoku begins! * Are you ready for the ultimate Sudoku challenge?