36 years after its invention, the Rubik’s Cube is still going strong, with enough interest that the Rubik’s Cube world championships are taking place, this time in Thailand.

350 competitors from over 40 countries were battling it out in 19 different competitions to see who the fastest solver is in their given category, Geek.com reports.

Included events that will win one of the dedicated few the title of world champion are speedcubing, solving the cube with one’s feet, and an event where the contestant’s are blindfolded.

A quick look at the Rubik’s Cube World Records shows just how good the contestants have to be to compete at this level. The world record for a cube solve is 5.66 seconds. Blindfolded the record stands at 23.06 seconds, one handed is 10.68 seconds, and using only your feet can be done in 31.56 seconds.