Geometry:
RotoPrism 2 Peekaboo is a see-through version of my award-winning RotoPrism 2 puzzle. In this version of the puzzle there are holes in the face centers that allow you to see through to the core. When those pieces are colored to correspond to the outer colors, they must be solved too. This makes the puzzle much tricker, as you are essentially solving two puzzles at the same time.
Other Items Needed:
Dye: If you want the puzzle to be black, you can save money by dyeing the pieces yourself with a nylon dye such as RIT or Dylon. Or Shapeways can dye the parts for you at an additional cost.
Stickers: Templates available in the instructions forum. If you want professionally cut stickers, I recommend Oliver’s Stickers.
Screws: Three 12mm M3 pan head screws required, available in hardware stores or on the web.
Springs: Three springs needed, available in web puzzle shops. I get mine from HK Now Store.
Degree of Difficulty:
Assembly: Inside-out core requires moderate dexterity to assemble.
Solving: Difficult to solve.
Playability:
RotoPrism 2 Peekaboo turns very easily once broken in. The mechanism can pop if turned incorrectly.
Have fun!