Anti-Chess
(Published on 1. March 2024, 18:15 by EricRathbun)
- Normal Sudoku rules apply.
- Thermometers increase from the bulb end.
- The Gray line is a palindrome that read the same frontwards and backwards.
- Digits separated by a knight's move (in chess) do not repeat.
- Digits separated by a king's move (in chess) do not repeat.
- Digits separated by the white dot have a difference of one.
- Gray squares contain even digits.
The puzzle can be played here:
Hope you enjoy the puzzle. Comments appreciated.
Solution code: Top row
Comments
on 13. April 2026, 00:52 by EricRathbun
added solution check
on 12. April 2026, 20:18 by snuuba
Probably missed something obvious as this felt very hard. Maybe there was easier way to determine the flavor of even digit in box one?
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Response from Eric: But you found your way. I don't recall exactly as I made the puzzle two years ago but the even digit placement in boxes 1 and 9 were key at some point.
CtC link with solution check:
https://tinyurl.com/phfjp4r6
on 12. March 2024, 14:47 by m0rkoli
lovely logic!
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Response from Eric: Thank you! Glad you liked it. Congratulations on the solve.
on 1. March 2024, 21:09 by SirWoezel
I thought this was closer to 3 stars, but I guess I have done a lot of anti-knight and anti-king sudoku's.
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Thanks SirWoezei. I've lowered the difficulty level. Sometimes it is hard to come up with a difficulty level for my own puzzles. There are other times that I think it will be easy and hardly anyone gets it.
on 1. March 2024, 18:55 by StefanSch
Nice logic!
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Response from Eric: Thanks StefanSch. Glad you liked it and congratulations on the solve.
