Fill every square with a dot or a ring. Every row, column and walled room is half and half, never three alike in a line. An = joins two squares that match, an × two that differ.
About Duet
Duet is a free daily logic grid from Mind Loft. Fill every square with a dot or a ring so that every row, every column and every walled room holds exactly half of each, with never three alike in a line. An = mark between two squares says they match, an × says they differ.
It is a balanced binary puzzle, the family sometimes called binairo or takuzu, with walled rooms that each have to balance too. Every board has a single solution you can always reach by logic, with no guessing. A square that breaks a rule turns red, but a square that is simply wrong is never flagged, and a clean solve scores a perfect 10 with the daily leaderboard decided on the clock.
A new board drops every day at midnight Eastern: 6×6 early in the week, 8×8 from Thursday, and a 10×10 Sunday Edition. No app, no signup, play free in your browser. More grid logic: try Plot, Hedge and Polka.
Duet, in short
How do you play Duet?
Fill every square with a dot or a ring. Every row, every column and every walled room holds half of each, never three alike in a line, and an = or an x between two squares says they match or differ. Tap a square to cycle it.
Is Duet free to play?
Yes. Duet is free to play in your browser on Mind Loft, with no app to install and no account required.
When does a new Duet puzzle come out?
A new Duet arrives every day at midnight Eastern time, and Sundays bring the Sunday Edition, the biggest or hardest board of the week.
What kind of puzzle is Duet?
Duet is a daily logic puzzle from Mind Loft: half dots, half rings. Puzzle type: binary puzzle (binairo) with rooms. It is part of the daily logic puzzles lineup.
Can I play past Duet puzzles?
Yes. Every past Duet board is in the daily puzzle archive, along with the day's standings.
What other daily logic puzzles does Mind Loft have?