Last year’s challenge, Stronghold, was played by two alliances of three teams each. These alliances compete to breach their opponents’ defenses, the outer works, and capture their tower. They score points by crossing defenses in their opponents’ outer works, scoring boulders in their opponents’ tower high or low goals, and surrounding and scaling their opponents’ tower at the end of each match.
The game is played on a 27 ft. by 54 ft. field, in which each alliance is assigned one tower, five defenses, and a ‘secret passage’ where their robots restock on boulders. In addition to the low bar, three defenses are selected strategically by the alliance and one by the audience prior to the start of their match.
Each match begins with a 15-second autonomous period in which robots operate independently of human control and attempt to cross opposing defenses, s well as score in the opposing tower. During the remaining 2 minutes and 15 seconds of the match, called the teleop period, robots are controlled by student drivers from behind their castle wall at the end of the field.
For more info, click here