I need some clarification on a rule. Can the pitcher be on the mound without the ball with the batter in the box and ready to hit. The catcher was trying to hide the ball with the bases loaded in a 15u game. Not sure why the hidden ball trick was being used with the catcher having the ball but anyway. Does the pitcher need to be off the mound or can he be on the mound but away from the pitching rubber. Please help.