Isn't it time to give your synapses a good flush? Twenty-eight unique Sudokus from easy to hard are waiting for your mind-flexing pleasure. For good measure, we've thrown in a second month, plus a two-week refresher, for a total of 70 puzzles. No math needed. But why hog all the goodness? Get a second copy or the companion book 'Manfred's One-Month Sudoku Power Plan for Men' to give to your better half or a friend. You'll even have a chance to take them on head-to-head. Accept the challenge and discover who's the smartest cookie in the jar.