Eight Quads
(Published on 9. February 2025, 01:16 by Belamis)
Sudoku: Normal Sudoku rules apply.
Quadruples: Every digit in a circle has to be assigned to one of the surrounding cells.
Digits may not repeat in any 3x3 area centered on a 8 (Or smaller than 3x3 if on an edge / corner).
Solution code: Column 9
Comments
on 6. March 2025, 03:48 by waffles_the_dog
A brilliant puzzle, it took me a lot of thinking before I finally realized/understood the break in, but once I actually worked out the interaction with the 8s, but once I got there the solve was really fun. Thank you!
on 23. February 2025, 16:58 by GT-R Penguin
Loved this rule set! Almost felt like two puzzles in one. Thank you!
on 13. February 2025, 17:06 by hardline35
First time seeing such a rule. It was challenging but satisfying to solve. Thank you
on 10. February 2025, 19:57 by SocratesRanz
New rule? At first I was skeptical, but it turned out to be quite enjoyable, as others have said.
on 9. February 2025, 15:40 by thoughtbyte
Very nice! Quite enjoyed that rule, thanks!
on 9. February 2025, 13:57 by danishbuddha
That 8 rule was great fun
on 9. February 2025, 12:22 by wilsig
Very elegant construction!
on 9. February 2025, 10:17 by mimec
Excellent rule! I'm definitely going to steal it :)
on 9. February 2025, 07:56 by therealsillypenguin
Don't know that I've seen that 8 rule before. Cool puzzle thanks for sharing!
on 9. February 2025, 06:41 by MSDOS
Really neat concept and logic!
on 9. February 2025, 03:24 by cygne
Great concept and execution. Very fun puzzle!
on 9. February 2025, 02:34 by samuelsamjo
Wow what a fun idea! This ruleset needs a name. Maybe "Neat/tidy 8s" but it works for all numbers.
