Gold Puzzles presents this brand new twist on Sudoku that gives you that little bit X-tra. Sometimes called Sudoku X, diagonal Sudoku, or even X-Factor Sudoku, the Gold Puzzles book of X Sudoku brings together 100 brand new puzzles in normal and hard difficulty. If you find yourself steaming straight through the Sudoku puzzles in the daily newspaper or the Sunday special editions, this book has more than enough challenges...
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