The Golden Pi Ratio
(Published on 26. January 2026, 20:56 by Manta-Ray)
Normal 6x6 sudoku rules apply.
Kropki: Cells separated by a white dot contain consecutive digits. Cells separated by a black dot contain digits where one is double the other.
Pi-Line: Hollow golden lines are separated into segments by golden dots. Each segment (when 'read' as a multi-digit number) is in a ratio of between 3 and 3.2 (inclusive) with all adjacent segments on its line. All segments are 'read' in the same direction along the line.
For example, 6-5-4-*-2-1-3 would be a valid line, as 654/213 = 3.07. However, 6-5-4-*-3-1-2 would not be a valid line, as 654/312 = 2.10.
Digits may repeat on a line if allowed by other rules.
Solve on SudokuPad
Solution code: Row 1 (read left to right)
Comments
on 2. February 2026, 22:10 by darkgently
Wow, brilliant. No idea how you came up with this - feels like a discovery!
on 27. January 2026, 09:14 by SennyK
It's amazing you were able to find something as beautiful as this. Thank you for setting!
on 26. January 2026, 21:50 by Manta-Ray
Updated difficulty
on 26. January 2026, 21:09 by ThePedallingPianist
At the risk of sounding too much like a CTC video title, I think this might be my favourite puzzle of the year!
on 26. January 2026, 21:06 by aqjhs
inequalities on rational numbers may seem scary, but this was lovely.
