Nintendo tumbler puzzle Nintendo tumbler puzzle The Nintendo tumbler puzzle, also known as the "Ten Billion Barrel" in English and originally in Japanese, is a mathematical puzzle in the style of Rubik's Cube. It was invented by Gunpei Yokoi of Nintendo in 1980 and was covered by (until the patent expired in March 1995 due to non-payment of a maintenance fee). It consists of a "cylinder" of transparent plastic divided into six levels, together with a black plastic "frame". The frame consists of upper and lower discs that are joined together through the middle of the cylinder. The top and bottom levels of
The ClueFinders 4th Grade Adventures: Puzzle of the Pyramid what he or she needs to know to make it through the fourth grade". 7Wolf Magazine rated the game 70/100, while macHOME gave it 3 out of 5 stars. The ClueFinders 4th Grade Adventures: Puzzle of the Pyramid The ClueFinders 4th Grade Adventures: Puzzle of the Pyramid is a computer game in The Learning Company's ClueFinders series, where the ClueFinders embark on an Egyptian adventure to save the world from the forces of chaos and Alistair Loveless. The ClueFinders are on an adventure in Egypt with Professor Botch, Alistair Loveless, and their dog, Socrates. There, at a dig site, they