No digits are printed, only dots. A white dot means the two neighbours differ by exactly 1, a black dot means one is double the other, and no dot means neither (a 1 beside a 2 always takes a white dot). Rows, columns and boxes still hold 1 to 6 once each.
About Dot
Dot is a free daily kropki sudoku from Mind Loft on a small 6×6 grid, in six boxes two squares tall and three wide. Every row, column and box holds 1 to 6 exactly once, and not one digit is printed. A white dot between two squares means they differ by 1, a black dot means one is double the other, and no dot means neither (a 1 beside a 2 takes a white dot).
It is the quick version of Polka: the same idea in a few minutes. Every board has exactly one solution you can always reach by logic, with no guessing, and boards get harder through the week, with a harder Sunday Edition.
A new board drops every day at midnight Eastern. No app, no signup, play free in your browser. Want the full-size version? Try Polka, or Sixes, the plain 6×6.
Dot, in short
How do you play Dot?
The 6x6 twin of Polka: white dots mean one apart, black dots mean one is double. One logical solution, a new board every day.
Is Dot free to play?
Yes. Dot is free to play in your browser on Mind Loft, with no app to install and no account required.
When does a new Dot puzzle come out?
A new Dot arrives every day at midnight Eastern time.
What kind of puzzle is Dot?
Dot is a daily sudoku from Mind Loft: polka at 6x6. It is part of the daily sudoku lineup.
Can I play past Dot puzzles?
Yes. Every past Dot board is in the puzzle archive, a tap away by day.
What other daily sudoku does Mind Loft have?
Whittle, Suds, SudsToo and Quilt, among others. The Sudoku page lists every one, with a new board for each every day.