Task in strict form. The players are positioned as in the graphics. The exercise starts with the player with the ball, who (1) passes to the partner in position number 9. (2) The player plays a back-ball, skipping one line, and (3) the player takes the ball (or not) and plays it to the player in position number 10 ( 4) then the player takes the ball directionally and plays to the partner from position 6 (5) who changes the center of play with a pass to the side of the court. (6) the quest continues the other way.