Quadrants

"What we call chaos is just patterns we haven't recognized.
What we call random is just patterns we can't decipher."

~Chuck Palahniuk, American novelist

The "Machuca tiles" in the previous post require sixteen tiles for each pattern. However, they also have patterns which require only four tiles, and that's what we saw on the floor of the 1925 Abbey of Our Lady of Montserrat, the chapel of San Beda College.