These Three 3s
(Published on 6. March 2026, 03:33 by FIT7Y)
Rules:
Fill the grid with the digits 1-7 such that every row and column contains exactly three 3s and one of every other digit.
Fill each box with up to 3 unique digits.
Digits along a slow thermometer never decrease moving from bulb to tip.
White dots separate consecutive digits.
Black dots separate digits when one digit is double the other.
Have fun solving!
Solution code: Row 8
Comments
on 7. March 2026, 21:08 by VitP
very easy (level 1)once you understand the constraint.
hint: goodliffe box 6.
on 6. March 2026, 16:41 by scarfdoku
That was fun thanks.
I think this is a 1 star puzzle once you figure out the rules. Which took me a little bit to parse for some reason.
If I read "Fill each box with 3 unique digits" first, I think it would have clicked way sooner.
on 6. March 2026, 13:29 by wunder108
Q: Im not sure what do you mean with: "Fill each box with up to 3 unique digits." Could you clarify?
A: If you count the number of distinct digits that appear inside a box, that number will be at most 3.
For example, if a box has the digits 3 and 5 then the box will either only contain 3s and 5s, or it will contain 3s, 5s, and at most one additional digit.
R: oh now I see! Thanks.. Maybe "Fill each box with up to 3 different/distinct digits." would be clearer.
on 6. March 2026, 04:50 by Chaossudokusplease
I really enjoyed triple threat so I’m glad to see more of this constraint. Looking forward to more if you have them!
