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This puzzle-packed sudoku collection features:
- More than 300 sudoku puzzles
- 5 levels of difficulty - from beginner to mind-benders
- Sudoku grids that are large, easy to read, and fill out
- An answer key for those puzzles that leave you stumped
- Spiral-binding for ease of use
- 192 pages
Whether you are new to sudoku or craving a fresh challenge, this sudoku book will give your brain a healthy workout.
The book's introduction offers helpful tips and techniques for solving the puzzles, starting with the process of elimination. As you work through the sudoku puzzles, you will uncover your own techniques for solving them. Although they are number puzzles, they do not require math skills. The objective of these crosswords without words is to place the numbers 1 through 9 only once in each horizontal row of squares, each vertical column of squares, and each 3x3 square box in the 9x9 grid. The puzzles have some numbers filled in, and you work out the rest. You never have to guess; all the puzzles can be solved by logic.
The popular Brain Games series was designed to help keep your brain cognitively fit, flexible, and young. Boost your concentration, logic, and reasoning and lower your brain age in minutes a day