Prime Lines
(Published on 27. November 2021, 17:59 by Klausku)
I came up with the idea of lines that can only take prime numbers. Combining this with kropki rules led to some nice logic, I think. Hope you like it. I would appreciate if you leave a comment. Thanks.
Rules:
- Normal sudoku rules apply.
Every row, column, and 3x3 box must contain all digits from 1 to 9. - Digits on yellow lines must be prime numbers.
- Kropki rules apply:
A black dot separates two digits with a 1:2 ratio. A white dot separates two digits with a difference of 1. Not all dots are given.
Solution code: row 7
Comments
on 19. April 2022, 17:42 by geronimo92
Of course 1 is not prime, that is basic algebra.... 2 3 5 7 are the only 1-digit primes known
on 18. December 2021, 15:03 by pipedreambomb
Unusually sneaky throughout. Did not crack open but kept going with nice logic. FYI for solvers as I didn't know this until very recently: 1 is not considered a prime number. I think I would have found it much harder without that knowledge!
on 6. December 2021, 14:44 by CHalb_mod
Sudoku tag ergänzt/added
on 28. November 2021, 07:26 by gbrljt
super lovely puzzle with awesome deductions! Recommend!
Klausku:Thank you for your nice comment. I‘m glad you liked it.
