Welcome to this superb new selection of 100 killer sudoku puzzles, hand-picked for your solving pleasure. The rules of killer sudoku are very simple, and are outlined below: - Place each number from 1 - 9 exactly once in each row, column and 3x3 bold-lined box that comprise each grid - The grid also contains sets of cells inside dashed lines (called 'cages'). Each of these cages contains a number. This is the sum total of the cells inside the cage. Thus a '4' means that the cells in that cage sum to 4. A number cannot be repeated within a cage. The book of killer sudoku contains 34 easy puzzles, 33 medium puzzles and 33 hard puzzles. There is also a how to solve section that outlines how to tackle the tricky challenge that is killer sudoku. This includes an outline of the rule of 45 - a piece of logic that you'll need to solve the tougher puzzles in this collection. All puzzles have a single solution that can be reached through the application of logical rules alone - although some puzzles are tough But with the range of difficulties there is something for everyone in this book from the beginner through to the experienced killer sudoku solver alike. All the solutions are included at the back of the book so that you can check your answers, or seek inspiration if you encounter a killer puzzle