Cross Sums puzzles, also known as Kakuro puzzles, are challenging yet enjoyment and easy to learn. More absorbing than Sudoku - try Kakuro puzzles and see for yourself. Create an unlimited number of Cross Sums puzzles with Amigos Cross Sums. All puzzles have a unique solution. Choose from 5 difficulty levels and 4 grid sizes. Print or solve on screen. Examples, solving hints and techniques are comprised in the program.