• Normal Sudoku Rules apply!
• Adjacent digits along blue Prime Difference Lines must differ by a prime number (0 & 1 are NOT prime).
• Digits along green German Whisper Lines must differ by at least 5.
• Digits along Kropki dots have a ratio of 1:2.
Solution code: Row 5, left to right
on 24. October 2025, 16:17 by Caconym
Pretty cool concept thanks for setting!