What was that thingwith the back and white diamond patterns

Aug 7, 2020

Inscribe a white diamond in a black square. Split the resulting figure along its vertical and horizontal midlines into four quadrants so that each quadrant is a square divided by one of its diagonals into a black half and a white half. Call the resulting figure DD.

Let GG be the group of 24 transformations of DD obtained by randomly permuting (without rotating) the four quadrants of DD. Let S4S

This really screws with vision. Its very hard for me to predict the outcome visually of a change made by swapping two corners