TELECOMMUNICATIONS
by Plexion
--- Rules ---
Normal sudoku rules apply.
Kropki Networks : orthogonally adjacent cells are considered 'linked' if their digits are consecutive or in a 1:2 ratio. Within each caged 'kropki network', all cells be must linked, and all links must form exactly one connected group (example below). Cells in a kropki network may link to cells that are not in a network, but must not directly link to other kropki networks.
No digit in a network (cage) can be in the same position relative to its 3x3 box as in any other network (i.e. partial disjoint groups).
Example:
--- Puzzle ---
Sudokupad : (no conflict checking for kropki networks, no solution checker)
First time publishing a sudoku, I hope it's fun!
Lösungscode: Row 5, left to right
am 2. September 2025, 03:02 Uhr von dzamie
Phew, finally managed to get this one! It's such a really cool ruleset, though the break-in is *incredibly* hard (or I'm missing some sort of breakthrough in logic). I wound up just kinda brute-forcing "where could X digit be" in one of the boxes, which sucked a little bit. But, once I got past that, the rest of the puzzle flowed very well, and I had a good time marking out the connections (completely unnecessary, but kinda fun. I was very curious to see if there would be a closed loop or not in the finished puzzle).
Kinda tricky to give this a difficulty rating, since the break-in felt easily 3* but the rest of it was a low 2*, maybe 1*. Regardless, I really enjoyed the logic that I was able to complete.
From the author:
Congratulations on the solve! Thanks so much for playing :) I agree, drawing the connections is definitely very fun.
I'll be the first to admit, as a very novice setter, the beginning is potentially a touch more bifurcat-ory than would be ideal — absolutely fair feedback. More on that in your hidden comment. But at the very least I'm certainly quite proud of some moments of logic that follow, think there's some good stuff there!
In any case, I too am quite fond of this ruleset, and I'm working on some new puzzles in a similar vain, that will hopefully break in a little more smoothly! Thanks again!