Generally, robots that can compete may be made from any platform. Motors that are used must be battery operated. The use of drones or other aerial craft are not permitted.
Start, Stop, Resume, End a Match
Upon the judge's instructions, the two teams bow to each other in the outer ring, approach the ring, and place a robot within their half of the ring on or behind the Shikiri line. (A robot or a part of a robot may not be placed beyond the front edge of the Shikiri line toward the opponent. Note that is not required that a robot be placed directly behind the Shikiri line; it may be offset to the side, as long as it is behind an imaginary line collinear with the Shikiri line.) When the judge announces the start of the round, the teams start their robots, and after a five-second pause the robots may start operating. During these five seconds, players must clear out of the ring area.
The match stops and resumes when a judge announces so.
The match ends when the chief judge announces so. The two teams retrieve the robots from the ring area and bow.
Time of Match
One Match will be fought for a total of 3 minutes, starting and ending upon the judge's command. The clock shall start ticking five seconds after the start is announced
Yuhkoh
One Yuhkoh point shall be given when:
1. A team legally forces the body of the opposing robot to touch the space outside the ring, which includes the side of the ring its self.
2. A Yuhkoh point is also given in the following cases:
3. When a wheeled robot has fallen over on the ring or in similar conditions, Yuhkoh will not be counted and the match continues.
4. When judges' decision is called for to decide the winner, the following points will be taken into considerations:
5. The match shall be stopped and a rematch started under the following conditions:
Players performing any of the deeds described in Articles 6, 16, or 17, shall be declared in violation of these rules.
A player who utters insulting words to the opponent or to the judges or puts voice devices in a robot to utter insulting words or writes insulting words on the body of a robot, or performs any insulting action, is in violation of these rules.
A minor violation is declared if a player:
1. Enters into the ring during the match, except when the player does so to take the robot out of the ring upon the judge's announcement of Yuhkoh or stopping the match. To enter into the ring means:
2. Performs the following deeds:
Players who violate these rules by performing the deeds described shall lose the match. The judge shall give two Yuhkoh points to the opponent and order the violator to clear out. The violator is not honored with any rights.
Injuries and Accidents during the Match
A player can request to stop the game when he/she is injured or his/her robot had an accident and the game cannot continue.
When the game cannot continue due to player's injury or robot's accident, the player who is the cause of such injury or accident loses the match. When it is not clear which team is such a cause, the player who cannot continue the game, or who requests to stop the game, shall be declared as the loser.
Whether the game should continue in case of injury or accident shall be decided by the judges and the Committee members. The decision process shall take no longer than five minutes.
The winner shall gain two Yuhkoh points. The loser who already gained one Yuhkoh point is recorded as such. When the situation under takes place during an extended match, the winner shall gain one Yuhkoh point.
Declaring Objections
No objections shall be declared against the judges' decisions.
The lead person of a team can present objections to the Committee, before the match is over, if there are any doubts in the exercising of these rules. If there are no Committee members present, the objection can be presented to the judge before the match is over.
Requirements for Identifications for Robots
Some type of name or number, to identify the robot (as registered in the contest) must be easily readable on the robot's body, while the robot is in competition.
Miscellaneous
As long as the concept and fundamentals of the rules are observed, these rules shall be flexible enough to encompass the changes in the number of players and of the contents of matches.