Kenzi / Earl chess game. Kenzi's absolute incompetence is reflected in not only ignorance of how bishops move, but her huddled few surviving pieces while Earl still has all his pieces and commands most of the board. Either Earl's mediocrity is shown in him only using knights and pawns while his queen has been two moves from establishing endgame, or he is refraining from ending the game by stomping on the cute girl.
Lauren says, "...prelusive blood tests indicate...". Prelusive, from the same root as prelude, means introductory or something that leads up to something else. A wordsmith might have use for prelusive. A scientist would run preliminary, not prelusive, blood tests.
At the end, the post intelligence chess game. In chess the tall piece with a cross on top is the king, when the king dies the game is over. On this board the black pieces are in absurd positions and the white king has already been taken off of the board.
Cheerleader meltdown about the need for a solid polygonal base and a triangular face is a legitimate geometry rant. Imagine a base that is a triangle, square, pentagon or hexagon. If each side of the polygon is the bottom of a triangle and all the triangles meet at a point the structure is very stable. Cheerleader pyramids are functionally two dimensional and can fall forward or backward. Simple concept, complex language.