This solver is completely experimental.No guarantees are made about it. It is quite more complex than my Samurai and Sudoku solvers, both in the internal workings (which also make use of PuLP) and also in the implementation on the website. Please let me know about any related comments you might have.

DISCLAIMER: The solver is linked to an invisible "reCAPTCHA" check.


  1. Set the size of the grid, and press the button to generate it.
  2. Draw your kakuro:
    1. Click on one cell in the grid and set sum values for the cells on its right and below it.
    2. Enter sum values of 0, 0 for cells that should just be blocked.
  3. Click the "Solve" button and correctly solve the captcha to get the solution.

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