Logic Masters Deutschland e.V.

Normal sudoku rules apply. Normal Japanese Sums rules apply. Colors used in this puzzle are Red, Orange, and Green. 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 is a letter after each number to represent its color to assist with accessibility, so orange numbers end with the letter O, which is not a zero. 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.