Rules:
1. Normal sudoku rules apply: Each row, column and 3x3 box contains each digit from 1 to 9 exactly once.
2. Dutch Whisper Lines: Adjacent digits along an orange line differ by at least 4.
3. Kropki Pairs: A pair of digits joined by a white dot are consecutive. A pair of digits joined by a black dot are in a 1:2 ratio (i.e. one digit is double the other). Not all possible dots are necessarily given.
4. X: Digits joined by an X must sum to 10. Not all possible Xs are necessarily given.
Have fun solving!
Here you can find the other puzzles in the series:
NATMOS 1: I'll Keep Holding On
NATMOS 3: A brief moment in its right place
NATMOS 4: Further Entanglements
NATMOS 5: Greatest Cypress in Ion
Lösungscode: Column 5 (9 digits, top to bottom)
am 18. Oktober 2026, 22:22 Uhr von Starlight
I did enjoy this but it was challenging. It didn't need bifurcation but was pretty hard.
Once I saw the trick it was still tough until near the end.
Great puzzle
am 18. Oktober 2026, 14:25 Uhr von iEtsh
This doesn't feel human-designed. Too much bifurcation.
I did not enjoy it.