TL and TR are completely opposite, TL refers to the left two floors and TR refers to the right two floors.
Rubik's cube, also known as Rubik's cube. Professor rubik invented the first Rubik's Cube and obtained the Hungarian patent number HU 170062 in 1975. Rubik's cube six stickers are usually composed of six colors: red, yellow, blue, green, white and orange. The fourth-order Rubik's cube has 8 corner blocks, 24 side blocks and 24 center blocks.