Oh No! 404’D!?!?

Some problems take a long time to figure out, like the Riemann hypothesis (shown on the left). Other problems take much less time.

If you’ve reached this page, you might need to check with your teacher or competition organizer to get the right web address for your event.

On the other hand, the problem may be ours, and if it is then we will have it resolved as quickly as possible. Please check back…