Logic Masters Deutschland e.V.

This puzzle was made for The Book Wyrm as a 2023 Secret Santa puzzle on the CTC Discord server. They asked for something crazy and non-standard, so I came up with this Japanese Sums x RGB Akari idea.

Rules

Japanese Sums: Shade some cells in the grid and fill all unshaded cells with a digit from 1 to 9 such that no digit repeats within a row/column. Numbers outside the grid give the sums of each contiguous segment of unshaded cells for that row/column, in order (left to right/top to bottom).

A question mark (?) represents any single digit, but not a leading 0 in a two digit number. A hyphen (-) represents a single unknown sum. An asterisk (*) represents any number of unknown sums, including none at all.

RGB Akari: Place some coloured light bulbs in unshaded cells so every unshaded cell is illuminated. Light bulbs illuminate their own cell as well as every cell seen in a straight line up to either the first shaded cell or the edge of the grid. Light bulbs cannot illuminate each other. A light bulb can be red (R), green (G), or blue (B). Clues within the grid are unshaded and give the colour of the light(s) illuminating them.

In this puzzle, red bulbs may only appear in low cells (123), green bulbs in middle cells (456), and blue bulbs in high cells (789).

Example Puzzle

Solving Link