Nice find! Seems to be similar to a game called Kakuro. This [1] repo even contains a similar rule: > The algorithm exceed the rules that the sum over a row m

Nice find! Seems to be similar to a game called Kakuro. This [1] repo even contains a similar rule: > The algorithm exceed the rules that the sum over a row must equal to the value on the left and the sum over a column must be equal to the value on the bottom of the cells with the diagonal and one or two numbers [1]: https://github.com/MarioBonse/KakuroSolverCSP https://github.com/MarioBonse/KakuroSolverCSP [2]: https://github.com/topics/kakuro https://github.com/topics/kakuro