Circuit Flow
(Published on 14. April 2022, 19:10 by Playmaker6174)
In my opinion, the difficulty should be on the lower side of 4/5 but I still put it at 4/5 in the final decision and of course it can be changed. I hope you enjoy!
Rules:
- Normal Sudoku rules apply: every row, column and 3x3 box contains digits from 1 to 9 each once.
- A black dot implies 1:2 ratio relationship between two cells, a white dot implies consecutive relationship between two cells. Not all dots are given.
- Blue lines in the grid with diamonds attached to them are lockout lines: Digits in the diamonds (endpoints) must have difference by at least 4; digits along the line must be different than endpoint values and must not lie between them (digits can repeat on the line if allowed by other rules).
To clarify more, the line from R2C8 goes straight in col 8 and ends at R4C8; the line from R3C7 goes through the intersection and ends at R6C9.
Puzzle:
Good luck and have fun solving!
Solution code: Row 7 (left to right) and column 8 (top to bottom), 18 digits long with no space
Comments
on 2. May 2026, 02:53 by Danitxa
The puzzle was great!
Turns out I made a grave, fatal mistake ...3 separate times... which led to the completion being very frustrating and mind numbing, but the moment I realized my mistake and got on the right track, the flow felt so seamless and easy in comparison that it honestly made the puzzle feel even better. 3 stars is right
on 21. September 2022, 06:17 by wooferzfg
Very nice, thanks!
on 7. June 2022, 18:53 by grkles
gorgeously smooth, as usual for you :) i agree with the 3/5 rating
on 18. April 2022, 02:24 by Piatato
Fun puzzle with great flow as usual. :-)
on 16. April 2022, 20:54 by Playmaker6174
Decided to change the difficulty back to 3/5, but on a bit harder side of it
on 16. April 2022, 19:57 by Niverio
Very lovely break-in, and as the name suggests, great flow after!
on 16. April 2022, 18:52 by Playmaker6174
Thank you very much for your lovely feedback, Kolot & Tallcat!
on 16. April 2022, 04:59 by tallcat
Very nice construction. Took a little thought for me to get going but once it started, it was a smooth solve all the way. I would put it in the 3-3.5 range for me (but i am more familiar with lockouts)
on 14. April 2022, 19:49 by kolot
Very nice interactions and a pretty smooth solution path. For the difficulty, I think 3 stars is fair.
