Modouble
(Published on 3. February 2024, 17:47 by FullDeck-Missing)
Double Arrows: Digits along a line sum to same total as the digits in the circles connected to the line.
Each double arrow also forms a modular line, including the circles at the ends of the double arrow.
Modular lines: Any set of three adjacent digits along a modular line has three different remainders when divided by 3.
Try the puzzle on the SudokuPad app by Sven Neumann.
You can find a complete list of our puzzles on LMD here. Please also visit us at Missing Deck Puzzles.
Solution code: Row 5, left to right, 9 digits with no spaces
Comments
on 7. May 2024, 10:20 by OBu42
Maybe I was not concentrated when I solved it, but there was much room for overseeing options. But the mechanics are quite nice and I was glad to solve it in the end. But I must confess that the checker was helpful in spotting my errors in the way...
on 28. April 2024, 00:42 by Angrily Scoff
Definitely a tough solve, but that made it all the more rewarding! I love the symmetry on this one and I think this is the first compelling use of double arrows I've seen... great interplay with the modular lines.
on 28. April 2024, 00:40 by chloeoeow
Tough solve, but a lot of fun!
on 23. April 2024, 05:12 by timotab
Found this a struggle, but satisfying to get through it.
on 5. April 2024, 14:47 by arbitrary
Such a fun puzzle to solve!. Lovely interaction between the two constraints. I would encourage more people to give this a try. Thanks for setting.
