There are three rounds in the Lego-Sumo Robotics category, and each round can last a maximum of three minutes:
Round 1: Both robots will start back-to-back in the center of the arena. When the round begins, they must race to the edge of the arena, turn around, and then push each other out of the arena.
Round 2: Both robots will start in the center of the arena, positioned diagonally across from each other. When the round begins, they must race to the edge of the arena, turn around, and then push each other out of the arena.
Round 3: Both robots will start at the edge of the arena, facing each other. Once the round begins, the robots will engage in a battle to push each other out of the arena.
– Robots may use only one working controller (NXT, EV3, Spike, or 51515).
– Only Lego pieces (NXT, EV3, Spike, or 51515) may be used in the construction of the robots.
– The robot must include a designated space for a robot ID, which will be assigned by iWISE.
– There are no limits on the number of motors and sensors used when building the robots.
– Wi-Fi and Bluetooth communications must be disabled at all times during the battle; participants must upload programs via USB.
– A 5-second countdown will occur before the robots begin to move when the battle starts.
– Participants are not permitted to communicate with each other during the battle.
– Participants may not communicate with their supervisor, teacher, or coach during the battle.
– Each robot can be built by a team of 1 to 3 members: no more than 3 members per team.
– The referee will not adhere to age division categories if there are fewer teams in the tournament.
– The robot’s dimensions must not exceed 20 cm on each side, with no height restrictions; the maximum weight allowed is 2000 grams.
– The robot must not contain any parts that could harm or damage another robot during the battle.
– The arena will have a diameter of 77 cm with a 2 cm border.
– Referee decisions are final; no team members (participants, coaches, supervisors, teachers, etc.) have the right to contest them.
– Referees reserve the right to disqualify any team or robot that does not adhere to the rules or exhibits unsafe behavior.
– You will lose the battle if any part of your robot touches the floor, and the referee will award 3 points to the opposing robot.
– Each round lasts for 3 minutes. If neither robot wins during this time, the referee will declare the battle a draw, and each robot will receive 1 point.
– Once the robots make contact in the arena, the first robot to touch the ground loses the battle.
– If your robot becomes disabled and cannot move, you will lose the battle, and the opposing robot will be awarded 3 points.
– If both robots fall out of the arena simultaneously, the robot that touches the ground first loses. If both fall out at the same time and the referee cannot determine which robot touched the ground first, they may declare the battle a draw. In such cases, the referee may also choose to declare a rematch.
– If your robot is unable to move just before the battle begins, the referee will allow 3 minutes for repairs; otherwise, you will lose the battle and the opposing robot will earn 3 points.
– The referee will keep track of points and remaining time for each battle.
– The robot with the most points at the end of the tournament will be declared the winner. – In the event of a tie, the team that saved more time during battles will be declared the winner of the tournament.