Article 1 : area rugs match play is a flat square with a size of 14m x 14m (minimum ) up to 16m x 16m (max ) . This area must be covered with Tatami mats or similar materials are acceptable , usually green and red ( see Figure 1 ) . Area rugs should play is divided into two parts that distinguish each play area and reference area safe . Zone demarcation between the two is called the " danger zone " is represented by a red band around 1 meter width around the entire perimeter of the square and is considered as part of the battle area game . The battle area is a square with a size of 8m x 8m (minimum ) up to 10m x 10m (max ) . The carpet outside the danger zone depends on the area of safety and width of about 3m ( not less than 2.5 m ) . A blue duct tape and a white band , about 6cm wide and 25cm long , was posted on the center area of combat, and 4m apart to indicate the position of the player at the start and at the end of the game game . Blue tape and duct tape to paste the white paste of arbitration left . Play area should be installed on a wooden floor or a flat base elasticity ( see note ) . If there are two or more play areas are located adjacent to each other shall be permitted to use an area generally safe minimum width of 3m . Wooden floor with a height of about 50cm . Note: Tatami mat play area ; * Normally Tatami mats are rectangular dimensions 183cm x 91.5 cm This size can be slightly smaller depending on the region of Japan. Currently, the carpets are usually 1m x 2m in size , is made of foam rubber or foam , to make sure the carpet and work to reduce vibration mitigation fall . * The Tatami mats should be covered by a plastic substance , usually red and green, not too slippery or rough . * The carpet made a play area must be adjacent to each other , with no gaps , to form a homogeneous surface and fixed so that the move is not free .
Wood floor or flat background : * The flat should be made of hardwood and has a shrug . The size of this clause of 18m square each side and 50cm high max . Article 2 : Tools 2.1 Chair and Director of the boundary flags and Arbitration : Two ( 02 ) ergonomic chairs are placed in the area of safety , in two opposite corners of the mat game. A green flag and a white flag is placed in a pocket in each marginal seat of directors . Also have a green flag and a white flag to the referee controls the match official . 2.2 scoring sheet : * Each mat should have played two scoring table (manual or electronic ) . * Each sheet size not exceeding 90cm in height and 2m in width ( the size may increase or decrease depending on the room ) . * Each table has a green side and a white side can be reversed . * Scoring sheet should be placed outside the play mat , usually opposite each other on either side of this area . Scoring sheet should be located so as to ensure the referee saw the game and control the audience . * On each scoring table must have a sufficient number of tables (typically from 1 to 10 ) to score technical points equivalent to the penalty error . * On each table must be free of signs of error . * The following small panels need to be prepared to record the time in the doctor's intervention where necessary (see Article 1.8.21 and notes of Article 29 ) : Two small table with green background trees , with a green cross on each table .
Two tables desultory green background , with a white cross on each table . In case of using the score board by hand , there must be a hand tool is used to indicate the remaining time of the match , when necessary, to stop the ball during the match progresses . In case of use of electronic records , the transcripts must be written by hand using parallel or redundant . The specification , and the error points or penalties , including doctor's interventions in the area of competition (see Article 29 ) shall be recorded in the table immediately after chants of Arbitration (see Article 8.1 . 21 ) . Table 2.3 Real -time convention : The table must be of the real -time use only for the ref to know specification achieved in real time (see Articles 5 , 13 and notes ) . 2.4 Clock timing : the time clock of 04 clock manually to be distributed as follows : Playing time : one ( 01 ) clock . Don OSAE KOMI estate : two ( 02 ) watches . In case of using the time clock electronic clock , the hands of time to be used in parallel for the purpose of calculation time . 2.5 Co ( timing of the ) : People who have the time to use the following flags : Chinese gold : stop property damage . It is not necessary to use yellow flags and blue flags in the case of electronic timing . However, this flag must be available . 2.6 Signalling end game : The termination of real -time the match referee should be alert to know in a bell or chime instruments ( Article 14 and notes ) . In the case once more play area must use different tools chime . 2.7 blue and white belts :
Each player should bring a blue or white belt with a width of at least 5 cm and a length sufficient to wrap a belt loop on the back of tightening
equivalent level , and more loans from 20 to 30 cm on each side to tie knots ( known players before bringing green belt , then bring players called white belt ) .