Four Square
(Published on 6. November 2025, 18:28 by billybeth)
Digits separated by a red dot have a difference of four. All red dots are given and no red dots are hiding under black dots.
Digits separated by a black dot are in the ratio 1:2. Not all black dots are given.
Solve online:Sudokupad.
Solution code: top row
Comments
on 7. November 2025, 19:26 by dzamie
Very simple, but pretty fun! I really enjoy unusual yet simple constraints like this.
Changing the dots to red was definitely a good idea.
on 7. November 2025, 09:13 by billybeth
changed dot colour
on 7. November 2025, 03:43 by Fisherman
The author should not worry much about the rating. We are used to white dots being consecutive. Maybe use a red dot next time.
In my opinion, this is a very good puzzle as is.
on 7. November 2025, 00:48 by Rollo
Nice dutch whispers dot
on 6. November 2025, 23:59 by Teithiwr
Nice and easy - Had to keep reminding myself of the white dot rule being different but apart from that an enjoyable little snack!
on 6. November 2025, 22:58 by Fisherman
The easier side of the scale. Once in a blue moon, gifts like this fall from the sky right into our living rooms.
on 6. November 2025, 20:13 by CitrusGremlin
Question about the implication of the rules: Do they imply that none of the black kropki dots are a 4/8 pair because otherwise they would be white kropki dots?
EDIT: I'm assuming so and solved it, although I don't think I had to use that bit of logic to do so. Maybe for your next puzzle with this ruleset. :D
