Kakuro Puzzle Book: Cross sums Math Logic Puzzles, Kakuro Puzzle Books for Adults (Logic Puzzle Book) (Paperback) (ISBN-13: 9798686830868)

This Logic game puzzle is a fun way to have fun and keep your brained up and working The principles of the game are very simple: Just fill in the empty squares using numbers from 1 to 9 so that the sum of each horizontal set of squares equals the clue on its left, and the sum of each vertical set of squares equals the clue on the top. No number can appear more than once in any sum.