Classic Logic
The original daily colour grid puzzle: dots and diamonds, pure logic.
In Classic Logic you fill the grid with dot and diamond tiles. Each row and column must hold the same number of each, no more than two matching tiles can sit side by side, and no two rows or columns can be the same.
Who it’s for
Anyone who enjoys a short daily brain game, Sudoku fans looking for something new, and students who like logic.
How the daily puzzle works
- One new puzzle every day at midnight UTC, in Easy (6 × 6), Medium (8 × 8) and Hard (10 × 10).
- Everyone gets the same grid, so you can compare times with friends.
- Keep a Classic streak going by solving every day.
- Share your result as a spoiler-free grid of coloured squares.