Sudoku Four Levels of Difficulty Book 21
- number placement puzzle
- 4 levels of difficulty
- solutions at the back
This book will appeal to all puzzle lovers! Sudoku is a number placement puzzle and it can be solved with reasoning and simple logic.
Each puzzle has a 9x9 grid, divided into 3x3 mini grids, with some numbers already given. Fill in the missing numbers in such a way that every row, column, and 3x3 box contains the digits 1-9, each number only appearing once.
There are 4 levels of puzzle in this book; easy, medium, hard and very hard.