Another new challenge I hope to receive entries for, the 15 puzzle is a completely different puzzle but it is made by a cube manufacturer! But the question is, can you make one yourself? The challenge is to make your own 15 puzzle and send me a video proving it is fully functional.

Deadline: 31st March 2021 at 11:59:59 PM GMT submit entries to daniel@speedcubing.org with clear video evidence for a chance to win.