Then this book is the perfect antidote to sharpen your thinking, improve attention and boost your memory!
In the Sudoku Ominibus, you get:
• More than 100 sudoku puzzles of varying difficulty levels.
• Four levels of difficulty (easy, medium, hard and nasty).
• Solutions at the end of each part.
• Sudoku grids which are large, easy to read and fill out.
So get those grey cells working.