Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Region Sum Line: Box borders divide the blue line into segments, each of which sum to the same value. If the line enters a box more than once, these are considered as separate segments. There is exactly one region sum line in the puzzle and it may not branch or intersect itself.

Fog of War: The grid is partially covered in fog. Placing correct digits will clear the fog from surrounding cells. No guessing is necessary.

Visibility Note: The line can be seen even if it only passes through the corner of a cell and not the center (for example, the line is visible in the bottom-left corner of R2C8 but not in the bottom-right or top-right).

Play in the CTC App 💍