Spiral
(Published on 16. October 2025, 12:31 by Keepo)
Rules:
Normal 6x6 Sudoku rules apply: In every box, row and column, place the digits 1-6 once.
German whisper lines: The green lines in the grid are German whisper lines. Adjacent digits must differ by at least 3 along the line.
Dutch whisper lines: The orange lines in the grid are Dutch whisper lines. Adjacent digits must differ by at least 2 along the line.
Ratio Kropki dots: The digits separated by a black dot differs with a 1:2 ratio.
Solution code: Row 6, first to last digit
Comments
on 16. October 2025, 18:19 by Kiwo
Very clever and beautiful setting! Thank you for sharing.
on 16. October 2025, 18:08 by Keepo
@Snookerfan Thank you!
on 16. October 2025, 18:08 by Keepo
@GeorgeTheToad2 I do believe so. This was the longest I could find at least
on 16. October 2025, 17:29 by GeorgeTheToad2
I wonder how long the green part of the spiral can get? Is this the limit?
on 16. October 2025, 16:15 by Snookerfan
Very pretty puzzle with an enjoyable solve. Well done, thank you!
