The Rubik's Cube has puzzled the minds of millions for decades, with most people giving up before ever coming close to finishing the notoriously difficult game. But not teenager Collin Burns, who has completed a cube in just 5.25 seconds, smashing the world record. The US national 'speedcubing' champion was at an official Rubik's Cube event in Doylestown, Pennsylvania, when he shaved 0.3 of a second off the record. Genius: Teenager Collin Burns completed a Rubik's Cube in just 5.25 seconds, breaking the world record . Unbelievable: Collin looks up at the clock after finishing the puzzle, clearly astonished by his achievement . Other teenagers can be seen chatting in the background as they completed their own puzzles at the official World Cube Association (WCA) meeting this weekend. Meanwhile Collin is focused on his cube, quickly spinning the rows of tiles round as the clock counts upward from zero. As the 3x3 Rubik's Cube's colours align, he drops it down on to a pressure sensor which stops the watch, bringing gasps from his fellow enthusiasts as they realise he has set a new fastest time. Collin breaks into a huge smile as he sees his accomplishment, which was 0.3 seconds quicker than the previous world record of 5.55 seconds, set by Dutchman Mats Valk. Other Rubik's Cube enthusiasts dash over to see what has happened as people begin to cheer . The US national 'speedcubing' champion was at an official Rubik's Cube event in Doylestown, Pennsylvania, when he shaved 0.3 of a second off the record . The gathered teenagers suddenly break into cheers as they crowd round to get a closer look, patting Collin on the back and shaking his hand. A WCA representative told Mashable that the teenager had officially broken the record. 'Although this result has not been uploaded to the WCA database just yet, we can confirm that this is (or will be soon) the new official WCA world record for the 3x3x3 single solve category,' the spokesman said. 'To our best knowledge, it has been performed in an official competition, with all the rules being followed, even the scramble has been checked for its correctness.'
A teenager has broken the world record for completing a Rubik's Cube .
Collin Burns finished the notoriously difficult puzzle in just 5.25 seconds .
He shaved 0.3 of a second off the record at an event in Pennsylvania .