Sudoku X: 200 Hard Sudoku X Puzzles Volume 1

Sudoku-X shares the same rules as a regular Sudoku puzzle, with the only difference being the fact that Sudoku-X puzzles have a cross of shaded squares running from corner to corner. These Shaded squares must also contain the numbers from 1-9, with only one instance of each number allowed in any one diagonal line.Your task is to fill each row, column and shaded diagonal with the numbers 1 - 9, with only one instance of each number allowed in any row, column and diagonal line.With only 2 puzzles per page and a 6 x 9 inch layout, the Sudoku-X Puzzle Book provides a large, clear puzzle area.200 Hard Sudoku-X Puzzles Handy 6 x 9 inch Book Layout Easy to read (2 Puzzles per Page) Advanced Solving Techniques RequiredMystery Bonus Puzzles Ideal For Advanced Puzzle Solvers Solutions Included