Guess the Renban
(Published on 24. September 2023, 15:28 by gdc)
This puzzle requires you to predict the path of fixed-length renbans through the fog. Thanks to the CtC fan discord for testing and feedback. Hope you enjoy!
- Normal sudoku rules apply
- Fog of war: The grid is covered in fog. Placing correct digits reveals clues in the surrounding 3 by 3 area.
- Kropki: Digits separated by a black dot are in a 1:2 ratio. Digits separated by a white dot are consecutive. Not all possible dots are given
- Renban: Digits on a purple line form a set of consecutive, non-repeating digits in any order.
- All renban lines are exactly 5 cells long, don't branch, don't share cells with other renbans and only move orthogonally
Play online: CtC, CtC (abbreviated rules)
Live solve video
Click here to see simon from CtC live-solving this puzzle on youtube. Thanks to everyone who recommended this for a CtC feature!
Solution code: Row 1 (9 digits)
Comments
on 5. December 2023, 11:51 by poundcayx
excellent! whenever i felt like i was stuck there was always some piece of very clever logic to be found. 5 stars!
on 17. November 2023, 06:39 by godoffours
Lots of clever logic - loved how the renban length allowed you to make inferences about what's in the fog.
on 4. October 2023, 09:39 by Margrietina
My first 3* puzzle that I ever managed to solve and it was really, really fun to think about and figure out even at the moments I got stuck on something for longer than I'd like to. Thanks!
on 30. September 2023, 16:40 by gdc
add link to CtC live solve video
on 29. September 2023, 16:15 by vorash00
I found this really difficult but everytime I became unstuck it was something relatively simple, so that could have just been me! I'm not sure but I found it difficult. If it wasn't for the fow I might have given up but every time I did get unstuck revealing fog meant i was still on the right path.
on 25. September 2023, 12:11 by sujoyku
Thank you for this very nice puzzle, gdc! For me, it was a 3/5 difficulty as well. Strangely, I struggled most with the ending when the fog had lifted almost everywhere. I might have overlooked something easier, but finally made use of a small case-by-case study which led to a cell having the same candidate in both variations. Anyhow, the arguments which help to find the continuation of the renbans are very original. The title fits perfectly. Thank you for setting and sharing!
on 25. September 2023, 04:29 by Tacosian
That was fantastic. Loved it.
on 24. September 2023, 23:43 by Silverscree
I agree with 3 stars. I don't think it's too hard, but you do need to be prepared to just experiment a bit, which is telegraphed nicely in the title and description! I really enjoyed solving this one. Thanks gdc!
on 24. September 2023, 21:41 by Carpet11
Great puzzle with a very nice flow and logic. I usualy struggle with 3* puzzles, especially renban but this one just fit in its place. I rated it 1* difficulty
on 24. September 2023, 21:17 by anyeyeball
This was a very nice challenge, and fun from start to finish. Thanks for sharing!
on 24. September 2023, 20:17 by gdc
@julien505, @Jreg: Thanks for the nice comments. Please feel free to uprate the difficulty on this one if you think it is more accurate. The click/solve ratio so far also suggests that it might be harder than I thought. And at the end of the day, it's always the perspective of the solvers that matters in that regard.
on 24. September 2023, 20:03 by julien505
Very fun puzzle that I rated 3-stars. Enjoyed it a lot!
on 24. September 2023, 19:02 by Jreg
Idk if I'm just dumb or this puzzle needs to be rated way higher in terms of difficulty, but I spent almost 2 hours on this. Wouldn't change a thing, though. It's filled with crazy detailed deductions and I loved it all the way through.
