I found the HARDEST Rubik's Cube Scramble - YouTube
It's possible to use one simple set of moves to solve any scrambled Rubik's Cube! | It's possible to use one simple set of moves to solve any scrambled Rubik's Cube!
How to scramble a 3x3 cube - YouTube
Rubik's cube scramble generator - Online Technical Discussion Groups—Wolfram Community
How many times should I move the sides of a Rubik's cube to completely shuffle them?'' is a very difficult question in mathematics. - GIGAZINE
The Hardest Scramble Ever - YouTube
Online Rubik's Cube Scramble Generator
The HARDEST Rubik's Cube Scramble - YouTube
twisty puzzles - What is the best method of scrambling a rubik's cube? - Puzzling Stack Exchange