300 Kakuro Puzzles

Sudoku's Big Brother Is Here! No doubt you have heard of Sudoku. The Japanese brainteaser has exploded across the US creating a tidal wave of interest in number puzzles. Now Kakuro is here. Kakuro is Sudoku's bigger, tougher brother - also known as Kakro or Cross Sums. In its native Japan it has millions of followers. Although its rules are simple, completing a Kakuro puzzle can be a considerable challenge. This logic puzzle uses numbers and basic arithmetic to perplex. Kakuro puzzles can come in various sizes from a simple 6 x 6 grid through to giant 30 x 30 minbenders. The basic idea is to fill in a crossword-type grid so that each set of blank squares adds up to the total to the left or above. Only the numbers 1-9 can be used and the same number cannot be used more than once in each set.