Sagitta (Anti-XV Arrow Sudoku)
(Published on 1. August 2022, 17:06 by Phistomefel)
Rules:
- Fill the grid with the numbers from 1 to 9 so that in each row, column, and 3x3 block, each digit occurs exactly once.
- The digits on an arrow sum up to the number in the associated circle. Along an arrow digits may repeat, as long as it does not violate any other rules.
- Orthogonally adjacent cells must not add up to 5 or 10.
Solution code: First row
Comments
on 27. July 2025, 20:54 by madhupt
Had a go at this brilliant puzzle many times earlier but was always gave up. This time just kept at it and finally solved it. Very tough but very rewarding in the end. After the mid-stripe break-in it was still quite resistant but finally caved in. Thanks for sharing this.
on 26. July 2025, 22:11 by StephenR
Had this puzzle open for almost a week and kept coming back to it as was determined to crack it, which I eventually did. Good to see Simon's magnificent solve though - his logic is so incisive that it makes me wonder how I didn't spot some of the things he did.
on 12. January 2025, 08:50 by TheNineElements
Made a sudokupad link for anyone interested!
https://sudokupad.app/oal7clus4o
on 24. August 2022, 11:35 by DaniK
Amazing puzzle and super fun!
on 23. August 2022, 13:39 by chalk235
Very enjoyable and fascinating puzzle. I’ve described my ‘quick-ish non bifurcative’ break-in using letters in a comment (nr 387?) to Simon’s CTC streaming of this puzzle, https://youtu.be/naW99FoEXc8.
on 22. August 2022, 04:24 by glum_hippo
Please make your comment hidden, SenatorGronk
on 22. August 2022, 02:53 by Crusader175
My god, that break-in is crazy, but very amazing!
on 5. August 2022, 08:27 by PotatoHead21
This one was quite hard, but after some careful deductions, I was able to get through it. Wonderful puzzle indeed.
on 2. August 2022, 15:13 by Phistomefel
Thank you very much for the feedback, everyone! I can see now roughly, where the problems with this puzzle are.
on 2. August 2022, 06:58 by Sayori
Great puzzle! This was tough but very satisfying as well!
on 2. August 2022, 06:22 by Playmaker6174
Goodness me, that break-in (or entire opening sequence) was nasty and quite intricate. I had to use a better way to work out my logical thoughts after 25 mins, really liked how the negative XV worked wonder in this one ;)
on 2. August 2022, 04:16 by bansalsaab
Echo @ragna’s opinion :-)
on 2. August 2022, 00:17 by Ragna
Surely Simon will solve this puzzle without bifurcations...
I not!
How ever, I got it and is was fun! Thank you. :-))
on 1. August 2022, 23:21 by udukos
Beautiful break-in!
on 1. August 2022, 22:47 by Godrick
That break in was hard but cool. Had to do it one more time after solving it to fully understand it :-) Amazing that it solves with just the negative xv after that!
on 1. August 2022, 18:38 by antiknight
That was an evil and crazy break in ! Thanks for sharing !
