The game of Kakuro is about numbers, similar to Sudoku. But unlike Sudoku, Kakuro requires some mathematical reasoning. Each Kakuro game consists of black and white squares, much like a crossword puzzle. You need to fill in the white squares with a number from 1 to 9.
Below are the guidelines for playing Kakuro:
- Enter a number in the white cells so that they add up to the total of the black box on the grid. (For example, if the given sum is 4 and the answer consists of two cells, the possible solutions are 1-3 or 3-1. You cannot use 2-2 as a solution, since you would use the number 2 twice.)
- A number in the bottom half of the grid indicates a vertical total, while a number in the top half is the horizontal total.
- Horizontal and vertical sections can only contain each number once.