Features
Account Required
In order to submit an answer to a problem, you must register an account.
Submissions
Submit your answer (out to 2 decimal places). Correct answers submitted for any current problem will be eligible to earn points and have your name displayed on the site. If you correctly answer an archived problem your name will appear on the correct answer list, but no points will be awarded.
Leaderboards
You can earn daily & weekly points that are added to your monthly and annual totals. You can also join a custom leaderboard to leverage the power in numbers and compete against other groups!
Speed and Accuracy
Weekly problems allow users to answer once per hour. Daily problems allow users to answer once every 15 minutes.