Firing Across Borders
(Published on 23. July 2026, 19:08 by marty_sears)
Rules:
Normal sudoku rules apply.
Divide the grid into seven regions of orthogonally connected cells. Fill the grid with the digits 1-7 so that no digits repeat in any row, column or region.
Digits along an arrow sum to the digit in the attached circle. An arrow's circle and its tip are always in different regions. Each region must contain exactly one circle and one arrow tip.
Solution code: The seven digits in the region that includes the central cell (r4c4), read from top left to bottom right
Comments
on 5. August 2026, 16:26 by simontherry
Lots of fun!
on 1. August 2026, 18:38 by yuripuppies
I usually struggle a lot with chaos construction but this one was so intuitive, I'm mind blown! You've done it again, Marty!
on 29. July 2026, 17:28 by ThymePass
This is a fun ruleset! Cheers :)
on 25. July 2026, 07:59 by rubencubed
thanks for this, marty :)
on 24. July 2026, 23:15 by PrissyP
Thanks for the nice Puzzle snack <3
on 24. July 2026, 21:33 by blackjackfitz
Huzzah!
on 24. July 2026, 16:49 by varbrad
Very nice :)
on 24. July 2026, 15:49 by amchap
Just lovely.
on 24. July 2026, 14:19 by Brandy New
Very nice and enjoyable! I didn't need to finish the regions construction btw.
Marty: yes you did, it's part of the rules lol
on 24. July 2026, 12:52 by kasperd
I found this one to be in the easy end of two star puzzles, but not so easy I would consider a one star rating for the difficulty.
on 24. July 2026, 02:47 by HeyItsErin
Such a big fan of this puzzle. Still learning CC and this helped me understand the fundamentals MUCH better.
on 24. July 2026, 00:00 by mscha
Nice one! I found it a bit trickier than I expected. Three stars for me.
I don't understand the meaning of the blue blocky background, though. Am I missing a reference?
Marty: Haha why does it need a meaning? I thought it looks nice, and eye-catching
mscha: That it does. :-)
on 23. July 2026, 22:50 by zeniko
Thanks for the lovely, approachable puzzle.
One detail: The rules seem to use „box“ and „region“ interchangeably.
Marty: thanks yeah that was just a little typo. Fixed!
on 23. July 2026, 22:18 by nunc
That was a blast gas. Thanks!
on 23. July 2026, 22:05 by dudu1061
Absolutely lovely!
on 23. July 2026, 21:46 by SennyK
Very nice puzzle! :-)
on 23. July 2026, 21:31 by GeorgeTheToad2
This was fun. I enjoyed the ending more than the beginning.
on 23. July 2026, 19:45 by sujoyku
Lovely puzzle! Thank you, Marty!
