- Normal Sudoku rules apply.
- Diagonal: On the marked diagonal digits do not repeat.
- Renban: Each purple line contains a set of consecutive non-repeating digits in any order.
- Dots: Digits joined by a black dot have a 1:2 ratio. Digits joined by a black 3-dot have a 1:3 ratio. (Not all dots are given.)
Here you can solve the puzzle online:
Solution code: Row 2 followed by Column 5, from left to right resp. from top to bottom (no space or comma, 18 digits in total)
yesterday, 08:14 by MysticMan
I struggled a little bit with the break-in, but it flows really nice after that. Lovely puzzle!
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Thank you for your comment, MysticMan! I am glad that you liked the puzzle's flow after the break-in.
Kind regards, sujoyku
on 12. March 2026, 02:20 by johnreid
This one was hard for me! I had to restart but did finally get there, although I think I might have had a flaw in my logic at one point. I think I’ll come back and solve this one again sometime. Very clever design!
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Thank you for your comment, johnreid! I am glad that you enjoyed this puzzle. It is always inspiring to see solvers going back in the archive to do some of the older puzzles.
Kind regards, sujoyku
on 6. December 2024, 20:48 by MattYDdraig
I took away too long to understand what was going on with them but the way the diagonal played off the renban was very clever.
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Thank you for your comment, MattYDdraig! I thought this might never get a confirmed rating, but maybe it will. :) Thank you for giving it a try! I am glad that you liked the diagonal/renban combination.
Kind regards, sujoyku
on 21. October 2022, 10:48 by sujoyku
only changed arrangement of links
on 21. October 2022, 10:47 by sujoyku
I have included a link where one can solve the puzzle on CtC Sudoku pad.
on 21. October 2022, 10:14 by mnasti2
Cool, clever, tricky!
Here's a sudokupad link for mobile users: https://tinyurl.com/39ymfdek
** Thank you for the feedback, mnasti2! I will gladly include the link to solve the puzzle on Sudoku pad.