Logic Masters Deutschland e.V.

The shaded regions (outlined in red) create a 6x6 grid scattered throughout the big grid. In this 6x6 grid, place the digits 1-6 exactly once in each row, column and region.

The unshaded regions create a 10x10 grid scattered throughout the big grid. In this 10x10 grid, place the digits 0-9 exactly once in each row, column, and region.

Normal Japanese Sums rules apply. Colors used in this puzzle are orange (r), green (g), black (b), light blue (L), dark blue (k), yellow (y), and purple (p). For best results, remove all unshaded marking you have done once completed.

Japanese Sums rules: the squares outside the grid indicate the order of the runs of contiguous cells that must be shaded the color of the clue. The number in the square indicates the sum of the cells in the run. There must be at least one unshaded cell between runs of the same color, but that is not required for runs of different colors. All shaded runs are given.

Thank you to Maff for creating this very interesting grid!

Sudokupad