This is a book of diagonal Sudoku puzzles. They are also known as Sudoku X.
Both diagonals must contain one occurrence of each number from 1 to 9.
All puzzles can be solved withoutguessing and have one solution only. If you need help, you can always peek at the solutions.
Remember: do not guess!
The book is small in size but the numbers areprinted in large font, easy to read.
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