by Publications International Ltd (Author), Brain Games (Author)

Keep calm and solve brain-boosting sudoku!

• This book includes more than 160 addicting sudoku puzzles.
• The puzzles become increasingly challenging as the book progresses.
• Large print grids and numbers.
• Puzzles sharpen problem-solving skills.
• Check your work with an answer key at the back of the book.
• Spiral bound, 192 pages.