Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Mod-5 Counters: Circled digits indicate how many of the up to 9 cells surrounding the circle (including itself) have the same value modulo 5 as itself. E.g., a circled 2 would count how many of the surrounding digits are from the set {2, 7}. Not all such circles are necessarily given.

Fog of War: The grid is partially covered in fog. Correctly placing digits will clear the fog around that cell. No guessing is required.

Play in the CTC App 🐝

Example for reference:

If you enjoyed this puzzle, check out the other puzzles in my series of modulo circle puzzles:

• Mod 2: Parity Hilarity, Parity Peculiarity, Parity Singularity, Parity Clarity and Parity Polarity
• Mod 3: Mod 3 Singularity
• Mod 4: Mod 4 Fog of War Dinosaur 🦕
• Mod 5: Leo's Dream (A Mod 5 Act Play) 🐸
• Mod 2 and 3: Parity Variety 🚀