The Odd Road to 200
(Published on 16. August 2023, 08:00 by Nordy)
An exploration of the number 200. No calculator or note taking required.
Rules:
Normal Sudoku: Place the digits 1 to 9 in every row, column, and 3x3 box.
200-Lines: The digits along each purple line multiply to 200.
The Odd Road to 200
- Draw a 1-cell wide, non-branching, orthogonally-connected road that does not touch itself orthogonally (but may diagonally). The two ends of the road are given as circles
- The road contains only odd digits, and the digits along the road sum to 200
- Except for the circles, the road cannot visit any cell that contains a given clue—the road cannot visit the given digits in R2C9 and R9C1, nor any cell that contains a line segment
Solve online:
Solution code: Column 8
Comments
on 30. April 2024, 15:07 by ninjamunk
After the initial calculations it was pretty straight forward. Knowing "the secret" is a must for this one. Solved it in 30 min, but still quite enjoyable and "very nice!"
on 2. February 2024, 23:04 by wuc
Greatest puzzle for me since many. Thx.
on 28. August 2023, 19:00 by Baklin
I had seen that Simon posted a video with this puzzle. So I wanted to try it myself before watching. Glad I did and kind of proud of myself that I finished it within one hour.
Thanks for posting this puzzle.
on 28. August 2023, 00:54 by Ragna
This beautiful puzzle is solved by Simon. (Unfortably I don't understand him in this video as a german solver).
Good puzzle!
on 22. August 2023, 14:00 by BaumJames
This was an amazing puzzle! Really satisfying. At the end I added all the odd digits with a calculator and press equal. Seeing that 200 was extremely satisfying. Really enjoyable puzzle.
on 18. August 2023, 17:43 by cascadeshiker
Amazing construction. The hard part is believing that there's enough information, then it just all flows.
on 18. August 2023, 11:38 by juvopa
One of the best approachable puzzles that look unbeatable. After you think that is not possible, there is such a nice way with no look back. Proud of myself to finish in 35 Min. ;-)
on 17. August 2023, 13:51 by giladooshlon
Such an elegant construction!
on 17. August 2023, 13:01 by Franjo
Wow!! This puzzle made my day. Thank you very much for setting this beauty!
on 17. August 2023, 12:10 by emwmasu
Excellent puzzle - reasonably approachable but still making you feel extremely proud to have figured out the logic!
on 16. August 2023, 18:15 by damasosos92
Brilliant and fantastic puzzle. Loved testing it.
on 16. August 2023, 18:09 by coreng
Absolutely brilliant. What a fun solve
on 16. August 2023, 17:20 by mathpesto
Miracle-tier puzzle over here
