A world record for solving Rubik’s Cubes, which was set in New Jersey in 2014, may have been broken.

Anthony Brooks set the world record for solving Rubik’s Cubes underwater at an event at Liberty Science Center. Brooks solved five cubes in one breath.

But a teenager from the country of Georgia may have just broken the record by solving six Rubik’s Cubes underwater in one minute, 44 seconds using only one breath.

The Guinness Book of World Records just needs to verify the feat.