Don Hatch and Melinda Green developed that puzzle on and off starting in
1988. Jay Berkenbilt and Roice Nelson later joined and made major
contributions. Theirs is the work that matters here: the n-dimensional geometry engine
underneath, which constructs each puzzle from a Schläfli symbol rather than hard-coding
it, is Don Hatch’s.
One part of this is new rather than ported: Kyle Cranmer developed the
unfolded interface, which lays the hypercube out as a solid cross
— the shape Dalí painted — so that all eight cells are ordinary
3×3×3 cubes you can see at once, beside the projection every other version draws.
Every one of the 128 puzzles that engine can build is here, and solve files from the original
open and replay unchanged — including the
Hall of Fame solves below, real solutions people emailed to
Superliminal, which these apps replay at whatever pace you like.