Australian Feliks Zemdegs, 19, has taken the Rubik's Cube world title for the second straight time at the 2015 World Championship finals, completing the challenge with a staggering average of 7.56 seconds and best score of 5.695 seconds, narrowly missing the world record of 5.25 seconds held by American Collin Burns.

"The competition was really, really awesome (and) well run. The venue was really nice; all the people were really nice," Zemdegs said. "The win was also really nice, as well. Because I won last time, I was less nervous this time because I had already won one, so that helped a bit."