Really easy on Level 20. While you could just work towards this naturally, there is a way to grind it out really quickly.
After the first turn, you will have a lane change available to you. There are two of them. If you stay on the color of the first one, it will go forward and backward with a lane change, but it will never actually get farther because the blocks of the opposite colors will always be in your way.
Just leave it running and you'll eventually get your achievement.