Unfolded Flop was invented by Volker Latussek. The object is to put the seven pieces into the cage. The set is almost the Soma set, but the V piece is replaced with the three-cubie I piece) The cage is designed such that only one solution is possible, and that all near-miss solutions are prevented. Obviously, lots of rotations are needed.
Watch the
YouTube video.
Read at the
Shapeways Forum.
Read more at the
Non-Twisty Puzzles Forum.
Please order a 3D-printed do-it-yourself puzzle kit from Shapeways at this page (check with Oskar about screws and stickers), or
contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.