¿dónde están pairrows?
(Published on 4. January 2025, 15:30 by aqjhs)
This puzzle came to life thanks to Gene and him hosting a setting contest around the pairrow constraint(s). Didn't manage to finish it in time to enter the contest but here it is.
- Normal sudoku rules apply.
- Dynamic Fog: the grid is covered by fog. Entering correct digits may clear fog in some cells. No guessing is required.
-
Two arrows of the same color on a cell with a digit D point to cells D steps away, one for each direction of the arrows, and those two digits follow the corresponding rules:
- Red (Renban): the digits along with D make a set of three different consecutive numbers in any order.
- Blue (Modulo): the digits are in the same residue class modulo D.
- Green (Difference): the difference of the digits is equal to D.
- Yellow (Sum): the sum of the digits is equal to D.
- Not all possible pairrows are given.
Note: Two numbers are in the same residue class modulo D when they have the same remainder when divided by D.
See also:
Solution code: Column 2 top to bottom
Comments
on 8. October 2025, 22:05 by bleppie
Really liked this inventive new rule!
on 19. February 2025, 21:05 by tangobunni
the yellow and green arrows are really impossible to see clearly -- i cannot see where some are pointing
on 9. February 2025, 04:46 by turtlepi
i hate aq
***
it was the 1 digit long division, right?
on 5. January 2025, 02:52 by DubiousMobius
Really enjoyed this! Those southern corners were a treat!
on 5. January 2025, 01:07 by mathpesto
Very fun and creative!
on 4. January 2025, 23:53 by rictech
Great puzzle! I liked the unique rule set and the very end made me chuckle :) Thanks!
on 4. January 2025, 21:36 by CitrusGremlin
This was a nice and fun puzzle. Would solve more with these arrows. I think there is some cool potential with them.
