Survival of the Smartest Sudoku Books for Adults - Senor Sudoku - Bog

Only the smartest and the most patient can survive this book of Sudoku puzzles. It is composed of a variety of puzzles that require your focus and careful analytic thinking. When you stop in the middle of a game, your re-focus skills get honed. Remember that the ability to refocus in less time is an essential skill to reaching success. Do Sudoku today.