The puzzles below are current daily and contest puzzles. These puzzles are competitive and you have to register to solve them and participate in the competition. To register click Login link in the top right corner.
You can use the scores page to see the results of other competitors for daily puzzle.
All the puzzles from the previous days are available at our archive page. Puzzles which are older than 5 days do not affect score table and can be attempted without registration.