Daily Sudoku
Medium-difficulty Sudoku with 32 givens. No hints — just you, the grid and the clock.
Daily Challenges
One new Sudoku and one new Nonogram every day — the same puzzle for every player worldwide. Solve it, then see how your time ranks.
How daily challenges work
A new set of puzzles goes live at 00:00 UTC. Every player gets the same boards, so times are directly comparable. Your first completed run of the day is checked by the server and posted to the leaderboard — sign in to take part. Solve at least one daily puzzle each day to build a streak.