Free on iPhone · No wifi needed
Balance the grove.
Balance the grove.
Three rules, no guessing.
A cosy binary logic puzzle, also known as Binairo or Takuzu, and the puzzle behind LinkedIn's Tango. Fill every row and column with as many owls as foxes, never three alike in a row. Hints that explain the move, a new puzzle every day, and nothing that shouts at you.
Works offline · Free · No subscriptions, ever
Simple rules. Deep logic.
Equal owls and foxes in every line, never three in a row. Grids grow from 6×6 to 12×12, with a 14×14 Weekly Grand in the app, and add = and × links as you go.
How to play →Rue
Three foxes in a row? Too crowded!Hints that teach, not tell.
Pip highlights the line, explains the deduction, and only fills the cell if you ask. Every technique lands in your Field Guide.
See the techniques →★ 12-day streak · Birch league
One puzzle a day, together.
The same Daily for everyone in the world. Keep a streak, climb the weekly Grove League, and never lose a heart to a timer.
What's in the app →