Coprime Numerals
(Published on 16. August 2026, 15:55 by vegemike)
click here (https://sudokupad.app/cdeplluzzj) or the image above to play
Rules
Normal sudoku rules apply.
Black numerals between two cells indicate exactly by how much they differ, and are not given between two coprime numbers (those that don't share a factor other than 1). All black numerals are given.
Pink numerals are given only between coprime numbers and function the same as black numerals. Not all pink numerals are necessarily given.
Solution code: The prime numbers (2,3,5,7) as they appear in the top 2 rows, in normal reading order (left-to-right, top-to-bottom)
Comments
on 19. August 2026, 18:42 by vegemike
fixed the tags :)
on 16. August 2026, 17:52 by vegemike
oops... and again
on 16. August 2026, 17:51 by vegemike
reworded the sln code
on 16. August 2026, 17:43 by macintux
I was able to solve the puzzle but I can’t solve the solution code, alas.
Fun puzzle.
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oh dear! glad to hear you enjoyed it. the solution code is the prime numbers (2,3,5,7) in the top row (left-to-right) followed by the prime numbers in the second-highest row (left-to-right)... i might rephrase it now you bring it up
-mike
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When did 1 stop being a prime number? Clearly I haven’t take a math class in too long.
Thanks for clarifying.
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you make a good point... i don't think i'll ever be sure of that either
thanks for taking the time to solve it! :)
-mike
