I have made two new cross sums sudoku's, this time with the letter H (with a bit of fantasy...).

Two different toroidal patterns, two different sum-possibilities.

1.

Fill in the digits 0 and 1 to 8 in every row, column and outlined coloured toroidal region. Outside the grid you find the sums of the digits you come across first from that side. The first number (in brackets) is the number of digits (cells) you have to add up, the second number is the sum of those digits/cells.

Rules of kakuro and toroidal sudoku's appear both.

2.

Different toroidal pattern, different digits to fill in: the zero appears twice, so fill in 0, 0, 1 to 7 in every row, column and outlined region.

Enjoy it.

Richard