Some additional links: Sander Huisman's 2016 paper about solving the three cubes problem for 74, using a supercomputer in Lyon [0]. The approach for 33 is quite

Some additional links: Sander Huisman's 2016 paper about solving the three cubes problem for 74, using a supercomputer in Lyon [0]. The approach for 33 is quite similar, just augmenting the range searched (and some additional tricks to further reduce the search space). Andrew Booker's paper about 33 [1]. It's quite funny how Numberphile inspired these searches. [0] https://arxiv.org/abs/1604.07746 https://arxiv.org/abs/1604.07746 [1] https://people.maths.bris.ac.uk/~maarb/papers/cubesv1.pdf https://people.maths.bris.ac.uk/~maarb/papers/cubesv1.pdf