For the 12, 000-seat basketball arena, architects at Wilkinson Eyre devised a rapidly erected steel-frame system shrink-wrapped with a white PVC skin, the curved steel stretchers forming a pattern of alternating diagonal projections on the outside.
Participants place markers over randomly called numbers on the cards in an attempt to form a preselected pattern such as a horizontal, vertical, or diagonal line, or all four corners.
What is more interesting is this final fifth wave is showing a pattern that looks like a wedge-like formation, commonly known in Elliott Wave circles as a diagonal triangle.