Mastering Kakuro

What's more fun than a crossword puzzle and more addictive than Sudoku? It's Kakuro of course—the latest puzzle craze to sweep the nation. Puzzle Master Timothy E. Parker, known in the Guinness Book of World Records as "the world's most syndicated puzzle compiler," offers 150 brand new puzzles to tickle your brain and transform you from a number-stumbling novice into Kakuro Master. 

•Easy, Medium, and Hard puzzles 
•Five extra-large Bonus Puzzles
•Rules, Tips and Strategies
•A list of "unique sums" which are the key to unlocking the logic of Kakuro
•A "Complete Sum Chart" listing every possible answer (Kakuro's answer to the crossword puzzle dictionary)

How to Play: Kakuro is a crossword with numbers that serve as the clues. The numbers you are given in the black cells represent the sum of that row or column. The goal is to enter digits 1-9 in the white cells to add up to the number stated. You cannot enter any number more than once. 

Warning: Kakuro may cause you to forget reality, lose all sense of time, miss your bus stop, and wear out all erasers in a three mile radius. Use with caution!Timothy E. Parker is the world's most syndicated crossword compiler according to the Guinness Book of World Records. In 1996, Parker's dual interests in computers and crosswords converged and he developed an interactive crossword that became the Web's first syndicated crossword puzzle. In 1999, Parker formed Master Puzzles, Inc., bringing together the talents of more than 60 of the world's top puzzle masters into one well-managed organization.