Symmetrical Fan
(Published on 19. October 2025, 19:28 by SennyK)
I hope you will enjoy my first ever created puzzle!
I would be really grateful for all the comments and ratings.
Normal Sudoku rules apply.
Sandwich: Clues outside the grid indicate the sum of the digits "sandwiched" between 1 and 9 in their column.
Kropki: Digits separated by a black dot are in the 1:3 ratio.
Digits separated by a white dot have a difference of 2.
Not all dots are necessarily given.
Arrow (gray): Digits along an arrow sum to the number in the attached circle.
German Whisper line (green): Adjacent digits differ by at least 5.
Dutch Whisper line (orange): Adjacent digits differ by at least 4.
Renban line (purple): Set of consecutive digits in any order.
Parity line (red): Adjacent digits alternate between odd and even.
Thermo line (gray): Digits increase from the bulb to the end.
Between line (gray): Digits on the line are between the values in the circled ends.
Lines never share the same path (i.e., there is no purple or green line under the red line).
If you liked this puzzle, I recommend trying out my other puzzles:
Night Club
Cops & Robbers
Broken Flashlight in the Darkness
Blown Fuses in Electrical Installation
Solution code: Second (2nd) row of the grid from left to right.
Comments
on 22. October 2025, 21:18 by QuiltyAsCharged
A lovely debut! It's the rare sort of puzzle that is on the easy side, but still manages to be engaging and well designed throughout.
on 20. October 2025, 15:10 by superkinkel
Absolutely brilliant puzzle, took me about 43 minutes (with some distractions and a few minutes until I figured out the 2-dots were not black but white). Hard to believe this is your debut at setting.
The 2 stars are probably justified because it's a lot of constraints interacting. Very much looking forward to more creations!
on 20. October 2025, 11:11 by VitP
a good, solid puzzle with zero defects - so deserves a 90% rating.
level 2 = which means, very easy for experts, and beginners can do it, with effort.
on 20. October 2025, 00:48 by Ragna
Very FUN puzzle! Thank you. :-)
on 19. October 2025, 23:04 by ymhsbmbesitwf
the clues interact beautifully. it's a lot though - with this many rules missing that a crucial pair was disambiguated adds a lot of time as i go over what can be the next focus before i get back to plain sudoku and resolve the pair. i think with so many rules some clues should be more obviously irrelevant until later, this puzzle felt a bit too densly packed. 60min solve and this level of difficulty i expected 20-40. overall a great debiut
on 19. October 2025, 21:01 by mezeji
nice puzzle, good work
on 19. October 2025, 20:54 by zonny
Wow - very impressive for a first puzzle! Definitely not easy, but approachable at every step - Thanks!
on 19. October 2025, 20:17 by SennyK
I would appreciate any comments and advice as this is my first created Sudoku :) I am also curious how much time did it take for you to solve!
on 19. October 2025, 20:16 by gameface
A nice first puzzle. I look forward to solving more of your puzzles.
