Primogenesis (Kropki X Sudoku)
(Published on 24. July 2024, 21:19 by Fool on Hill)
Puzzle rules
Normal Sudoku rules apply.
If two digits are joined by a black dot, one is double the other. All black dots are given
Two digits joined by an X sum to 10. All Xs are given.
The two digits joined by a white dot are consecutive. Not all white dots are given.
Here is the SudokuPad link: Primogenesis
This was a puzzle I conceived with a particular task in mind. Maybe you can work out what it was I was trying to do.
Solution code: Row 1
Comments
on 9. September 2024, 21:57 by michielbrinkers
Great fun. Had to get the flow of the constraints, but once I'd figured out one of the chained constraints it started to unfold really nicely.
on 21. August 2024, 18:00 by zimmicks
I found a different solution.
However my Row 1 sequence happened to still be correct.
Have you checked the negative constraint? It is very easy to miss instances. Obviously you must be quite close to the correct answer. (There is only one solution - I have rechecked on a solver)
on 12. August 2024, 23:08 by garycblack
Hrmm.. why am I stuck? Oh! A negative constraint! Hrmm.. why am I stuck? Oh! A negative constraint!
on 7. August 2024, 18:31 by Tingo
This was quite fun. Thanks for setting and sharing!
on 26. July 2024, 18:07 by Ganbatte
I enjoyed this puzzle, thank you.
on 26. July 2024, 15:15 by agreement5498
Great puzzle, great flow! Love a good negative constraint.
on 25. July 2024, 17:36 by walid_tun
smooth, fun and relaxing
on 25. July 2024, 14:43 by JR_pianoman
Cute
on 25. July 2024, 03:27 by inthemoonlight
I really enjoyed the incorporation of the negative constraint in this puzzle!
on 24. July 2024, 21:48 by mosse
I see what you did there. Cute little puzzle that's definitely on the easier side but still enjoyable
