2.6.10 A beep announces the end of a phase and the start of the next phase if any.
2.6.11 A Pyramid is expected to be built layer after another. It is not permitted to place a block on any upper layer before laying down all the blocks of the lower layers in their correct positions. For Khufu Pyramid, this will be judged by referees who raise a flag. For the other two Pyramids, each team points will be calculated by the end of the match.