One corner piece
Step 1 / 7
r: Right inner layer: turn 90°, front face goes up (Written as TR in the textbook)
The top has red pieces in its front-right spot. The front has green pieces in its top-right spot.
Green on top, red at the front. The algorithm has 2 r ... r' groups.
Step 1 of 7: r. Right inner layer: turn 90°, front face goes up