Top left · blue front
Step 1 / 6
U': Two layers around the top corner: turns counterclockwise (looking at the top corner)
The red-blue edge is at the top left, with blue facing you.
The V is at the back, yellow on the bottom, green facing you.
Step 1 of 6: U'. Two layers around the top corner: turns counterclockwise (looking at the top corner)