Thingiverse
Ten Billion Barrel Puzzle
by C3dke
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The Ten Billion Barrel, also known as the Nintendo tumbler puzzle, is a mathematical puzzle in the style of Rubik's Cube.
It consists of a "cylinder" 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 cylinder form a single piece, but between them are two rotatable pieces each two levels high. Each of the four central levels is divided into
It consists of a "cylinder" 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 cylinder form a single piece, but between them are two rotatable pieces each two levels high. Each of the four central levels is divided into
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