Palettes and Palindromes
(Published on 31. May 2022, 16:07 by EricRathbun)
- Normal Sudoku Rules apply.
- Normal Killer Cage rules apply.
- Normal Little Killer rules apply.
- Digits separated by a white dot have a difference of one while digits separated by a black dot are in a 1:2 ratio. Not all dots are given.
- Gray lines are Palindromes which read the same frontwards and backwards.
The puzzle can be played here:
Hope you enjoy the puzzle. Comments appreciated.
Solution code: Top row
Comments
on 22. February 2026, 17:17 by snuuba
Overlooked a basic question and really, really struggled with this one. After several restarts, I tried different route and finally it clicked. Ask a right question=2 stars, ask bunch of wrong questions = only god knows how many stars :)
Classic Eric Rathbun puzzle, combining constraints in way that it leads to fairly unusual twist which then unravels the whole puzzle.
Beautiful puzzle, many thanks
CtC with solution checking:
https://sudokupad.app/av10cmxii0
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Response from Eric: Snuuba, out of all my puzzles, this is one of my top 5 favorites. Glad you found your way through it.
on 21. August 2023, 17:47 by McParland57
Think I missed something because I found that really hard.
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Response from Eric: But you got there in the end. Well done!!
on 23. June 2023, 17:56 by Hydalin
Ich mag solche Rätsel - schön bunt und immer geht es irgendwo weiter. Vielen Dank!
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bitte schön
on 8. October 2022, 00:12 by Ragna
Okay, I got it. But not with colours. Much faster than Simon's wholy purplepurplepurplegreen...
dreadful! I don't like this.
So thank you for this very fine puzzle. :-))
on 25. July 2022, 21:15 by pipedreambomb
One of the best variant sudokus I've done (out of hundreds). The logic was really unusual throughout and kept making me think. Well done!
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Response from Eric: Thank you pipedreambomb for your kind words. Glad you liked the puzzle and congratulations on solving it.
on 31. May 2022, 21:23 by econtrout
loved the round and round she goes.....nice break in. Thanks!
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Response from Eric: You're welcome. Glad you didn't mind spinning in circles. :)
on 31. May 2022, 21:10 by Klappa en ko
Very nice puzzle thanks for sharing
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Response from Eric:
You're welcome. Glad you liked it!
on 31. May 2022, 20:31 by Gullie
What a chromatic joy this was :-)
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Response from Eric: Glad you liked it Gullie. Always nice to hear from you.
on 31. May 2022, 19:03 by Chelo
That WAS fun!.. Great solving path, thank you for setting and sharing!..
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Response from Eric: You're welcome Chelo! Glad you enjoyed it.
