An interlocking puzzle cube designed by Andrey Ustjuzhanin. Recreated in OpenSCAD with the Puzzlecad library. Published with permission from the author.

No supports needed. Snap the labeled connectors together after printing. You can add a drop of AC glue.

Pack the 6 pieces inside the frame to form a 4x4x4 cube.

Solution: https://youtu.be/ukfcUAmjAbY

More similar puzzles from the designer in the collection: https://www.thingiverse.com/akaki/collections/andrei-ustjuzhanin-puzzles

http://puzzlewillbeplayed.com/444/SuperPacker/

More puzzles on Andrei's website: http://www.photodreamstudio.ru/index.shtml