Participants will develop a finite solution to the stated problem provided on-site. On competition day, participants report to the event area and the problem, evaluation criteria, and materials are distributed. Teams will be given a 90 minute window to begin construction of a solution and each solution is tested as soon as possible after the construction phase is completed. Solutions are evaluated at the end of 90 minutes using measures appropriate to the challenge, such as elapsed time, horizontal or vertical distance, and/or strength.