Kakuro, also known as Cross-Sums (US) or Kakro (Japan), are easy to learn, language-independent, math-and-logic puzzles. After the success of Sudoku, they started appearing in newspapers around the world and are now almost as popular as Sudoku.
Each number in a black area is the sum of the numbers that you have to fill in in the next empty boxes. The empty boxes that make up the sum are called a run. The sum of the across run is written above the diagonal in the black area and the one of the down run is written below the diagional. Runs can only contain the numbers 1 through 9 and each number in a run can only be used once. The aim of the game is to fill all the empty boxes. If we use gray and white empty boxes, the gray boxes only contain odd numbers and the white only even numbers.
We can generate an almost infinite number of Kakuro games for kids (aged 8 and up) and adults. Difficulty levels can range from very easy to very hard with a grid size of 5x5 to 25x40. Click on the links below to see some samples.
For each game, we deliver an .rtf text file for the directions and a high-resolution (300 DPI) TIFF file.
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Kakuro Adults Grid 10x10 Hard