Whether you re new to the sudoku craze or you are craving fresh sudoku challenges, you ll find what you re looking for in Brain Games: Sudoku Collection #2. The book, part of the popular Brain Games series, is designed to help keep your brain cognitively fit, flexible, and young. This puzzle-packed collection features: Hundreds of sudoku puzzles divided into five levels, ranging in difficulty from beginner s fare to mind-benders. Sudoku grids that are easy to read and fill out. An answer key for those puzzles that leave you stumped. You don t have to be a whiz with numbers to enjoy Brain Games: Sudoku Collection #2 because there s no math involved. And you don t have to be a great speller to master these crosswords without words. You just need to use logic and enjoy a good challenge. The book is spiral-bound and easy to handle. Use these brain exercises any time to boost your concentration, logic, and reasoning.