This site is still partially under construction, and we have not yet moved the old practice problems to the new site. We expect to migrate the practice problems in just a few days, but in the meantime, you can still find it at the old site here: Old Practice Test. Just be warned: navigating to the old practice problems will leave this site, and we have not (yet) updated the links on the old site to bring you back here.
As part of this new site, we will be offering your teams a chance to practice using the contests from previous years in a timed format, just like the contest coming up. This will also give the contest supervisor a chance to practice starting the team's contest clock. Look for this exciting new feature on the supervisor page once you log in. We expect to make this feature available by February 15.