Sim Card
(Published on 22. February 2026, 12:47 by slamwich)
By slamwich
Rules
Sudoku: Fill the grid with the digits 1-6. Digits may not repeat in a row, column, or box.
Kropki Dots: If two digits are separated by a black dot, one is twice the value of the other. If two cells are separated by a white dot they are consecutive.
Region Sum Lines: Box borders divide the blue lines into segments. The sum of the digits on each segment is the same for all segments of the same line. Different lines may have different sums.
Solution code: Final Row of the puzzle
Comments
on 23. February 2026, 22:10 by slamwich
In hindsight I wish it weren't quite so doable to solve with bifurcation, as it is definitely possible to solve without it and that is the intended path.
For those interested I'll add my solve path as a hidden comment.
on 23. February 2026, 21:20 by VitP
can be solved by brute force (bifurcation).
anything else is definitely not level 1
on 23. February 2026, 16:03 by slamwich
typo fix
on 23. February 2026, 09:46 by MartinR
Nice puzzle, no bifurcation needed for me.
on 23. February 2026, 07:18 by JVA
May I attempted to solve this too early in the morning, but I couldn't find the proper logic to solve it without bifurcation
