One Snake to color them all
(Published on 7. August 2025, 11:04 by Sabrar)
Got an idea for a new method of disambiguation, had to make a puzzle for it.
Normal Sudoku rules and anti-Knight constraint. The grey line is a palindrome. All digits are in the same respective position in their own box. E.g. if 1 in the top left box is in the top middle position (i.e. r1c2 is a 1) then 2 in box 2 must also appear in the top middle position (r1c5 is a 2), r1c8 will be a 3 and so on.
Have fun!
Solution code: Column 6 (9 digits, no spaces or commas)
Comments
on 17. August 2025, 22:03 by cherryhaunt
2 star difficulty for me but I've done a TON of palindrome coloring puzzles. Really nice! I like the twist on the disjoint set rule
on 17. August 2025, 03:05 by Mip
Never have numbers meant so little in a Sudoku puzzle.
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Sabrar: to be fair, the classic sudoku also doesn't care about numbers, you could use any 9 distinct symbols and it would be the same.
on 13. August 2025, 02:12 by jorgenunez
Loved it! The final is very good.
Thanks
on 10. August 2025, 09:18 by galium_odoratum
Fun coloring puzzle. If anyone else struggles to wrap his mind around the extra rúle:
There is exactly only one cell position which satisfies a global disjoint rule. This position has to be filled with the corresponding box number.
on 9. August 2025, 10:08 by Exigus
Had great fun coloring, thanks!
on 8. August 2025, 10:11 by ellamackmitch
brilliant puzzle, thanks for creating and sharing!
on 8. August 2025, 07:10 by Fizz
Very fun puzzle, thanks!
on 8. August 2025, 00:30 by Kawkaz
Very fun puzzle, challenging but very rewarding at the end
on 7. August 2025, 23:31 by Fisherman
The examples were spot on, but the definition was rather terse.
Excellent puzzle tho.
on 7. August 2025, 21:20 by AnebodaSlatorp
Very nice, thank you
