also known as Cross Sums, is a challenging number puzzle, solved
in a crossword style grid.
rules are easy to learn : A number above the diagonal line in a
black square is the sum of the white squares to the right of
it. A number below the diagonal line is the sum of the
white squares in the sequence below it.
regular kakuro puzzles, you
may only use the digits 1 to 9, and a digit can only be used
once in any sequence.
addition, BestKakuro creates puzzles where zeros are allowed in
the solution. For these puzzles, you may use any of the
digits 0 to 9. As with regular Kakuro puzzles, each digit
can only be used once in any sequence.