Brain Games Sudoku Collection #2 presents more than 300 sudoku puzzles. Part of the popular Brain Games series, the book is designed to help keep your brain cognitively fit, flexible, and young. The sudoku puzzles are sorted into five levels of difficulty. 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 develop your own techniques for solving them. Answers to every sudoku are provided in the final section of the book. The sudoku puzzles in this book are 100 percent different than in the Brain Games Sudoku Collection #1.

Sudoku puzzles add a fresh challenge to your mental workout. 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.