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Kakruo is a popular number puzzle game, similar to crosswords but with numbers. In this logic puzzle, the clues are sum of digits of the answer number. These puzzles are presented in a book format with about 5000 games in 3 difficulty levels.
Kakuro puzzle game and solver for windows. Hint features include scan, markup and reveal cell. You can also enter puzzles from newspapers and solve them, or see the solution. Sizes from 6x6 to 14x14 and difficulties from easy to hard.