About the Show
This move consists of intersecting lines to shift one block into another. The lines that are next to eachother rotate into their positions in opposite directions. This makes it so that every other vertical line in a block turn clockwise, and all others turn counter-clockwise.
Ther is a variation on this move. The crisscross is formed from the center. The first 2 lines rotate inwards/outwards. The next two lines rotate the opposite way as the first two.
Both are showed step-by-step.