Rules:
Links to online solving tools:
Solution code: Row 1 and Column 7 (18 digits, no spaces)
on 25. February 2026, 12:10 by MikeMeech
Very fun puzzle. I always enjoy puzzles where you can divide by colour into high and low, and then narrow down each cell to 19, 28, 37, 46, or 5.
on 12. October 2024, 18:43 by DiMono
As a Canadian, I approve.
~~~ Why thank you! I was pretty pleased with this one :p
on 16. December 2021, 00:12 by Florian Wortmann
The break-in was quite tricky, but beautiful. Very clever puzzle and aesthethically pleasing as well :-)
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Thank you so much, very kind! High praise indeed from a name that's familiar even to this newcomer in the world of CTC and "weird variant sudoku" :p
on 15. December 2021, 18:01 by Baldo95
Very enjoyable puzzle!
Even though I agree with other comments about the difficulty. After 3 steps, I already knew which were the high and the low digits and this is something that seldom happens to me
~ Glad you enjoyed it! And thank you for the feedback. I think maybe I'm missing some possible deductions in my own puzzle, then (or I'm not as good at Sudoku as I thought :p), because on playing it back myself, I found figuring out the high/lows to be fairly tough!
EDIT: I've decided to downgrade the difficulty to 3 stars, so as not to put people off :)
on 15. December 2021, 13:36 by Statistica
Nice entry, I like the idea.
~ Thank you! I originally had a given digit to help with the break-in, but was surprised to find it worked without it!