Take your sudoku skills to the next level of play and on to the more challenging Kakuro.
You'll not only improve your Sudoku skills, you'll beef up deduction skills in general and get an introduction to the next craze, Kakuro. More than just a how-to book, "Teach Yourself Advanced Sudoku and Kakuro" explains how its puzzle-solving techniques work, so you can understand their logic and apply them. Of course there are nearly 100 puzzles, ranging from tricky to diabolical, for you to practice what you have learned.. .