Owlogic
Five calm logic puzzles a day, with Olo the owl. No ads in your way, no timer, no account.
The Daily Five
Five fresh puzzles every day, the same for everyone: Owl Territories, Day & Night, Night Flight, Owl Sudoku and Nests. Every one has a single solution you can reach by logic alone.
Olo's Academy
Olo teaches each way of reasoning on a real board, then lets you try it. Hints point at the step, never just the answer.
Together, gently
Light a lantern each week with your Parliament of friends, and the whole forest with everyone. Nobody is ranked, and a quiet day costs nothing.