Doppelt (Double Arrow)
(Published on 17. September 2021, 16:48 by tallcat)
Normal Sudoku rules apply
Double Arrows: The lines and circles are double arrows. The sum of the digits on the line must equal the sum of the digits in its end circles. Digits may repeat on double arrows (lines and circles) if allowed by other rules.
As an example, if two circles containing 5 and 7 are connected by a 3-cell line, the line might contain the digits 2, 4, and 6.
Can be played online at CTC
Solution code: Column 2 (Top to bottom) and row 7 (left to right). 18 digits, no spaces.
Comments
on 7. November 2022, 06:00 by Xendari
a puzzle I'll fondly remember - thank you :)
on 5. October 2022, 07:07 by Richard
Very nice interactions between all the different lines and circles! Took me a while to get my head around it to find the opening, but after that it was smooth sailing.
on 18. September 2022, 22:47 by Samish
Awesome puzzle! The way it avoids any tedious deductions despite the appearance of the grid at some point was thoroughly clever and enjoyable.
on 16. August 2022, 17:36 by Niverio
Tallcat wanted me do to this puzzle for like 5 months, I have to say, I am glad he did :)
on 7. October 2021, 02:48 by twototenth
This was CRAZY, in the BEST WAY. Very nicely done.
on 20. September 2021, 12:35 by Cowbear
I'm still amazed I was able to break in to this one. Very nice.
on 19. September 2021, 00:21 by abed hawila
Wow! what a masterpiece this is! absolutely stunning puzzle.
on 18. September 2021, 17:16 by zetamath
I really enjoyed this take on this rule set. This was quite a challenge for me for sure, but I highly recommend it! I definitely hope to see Simon tackling this at some point too!
on 17. September 2021, 20:34 by Playmaker6174
Challenging in the first half and then the later half is really worth the effort. I really felt relieved at one point there :)
