* Ten Billion Barrel *

** a.k.a. *** Billion Barrel, Tumbler Puzzle *

* Patented G. Yokoi 1983, made by Nitendo. *

(plastic, 3.4 inches high by 2.8 inches diameter;

left 1980, green, blue, red, orange, yellow with black balls on green, yellow, red;

right 2009, orange, yellow green, blue, red with black balls on orange, red, green;

the Yoki patent also describes the
*Trillion*
puzzle)
)

There are 23 balls in 5 columns, 4 of each of red, orange, yellow, green, blue, where three of the columns have an extra black ball.
There are 6 rows of plastic rings around the puzzle where rows 1 and 6 cannot rotate, rows 2 and 3 rotate together, and rows 4 and 5 rotate together.
The black body that holds the balls can slide up or down 1 unit inside the rings
to shift the three longer columns.
The goal is to put each of the 5 colors in their own column, with the three black balls on top of the three longer columns.
*Jaap's Page*
presents a solution. Here is a view of the other side of the solved puzzle, and a view of it mixed up:

**Further Reading**

*Jaap's Page*,
from: http://www.jaapsch.net/puzzles/nintendo.htm

*Martin's Page*,
from: http://www.smartbytes.co.uk/Tumbler/tumbler0.htm

*Spanish Page*,
from: http://chelis.iespana.es/soto1.htm

*Yokoi Patent*,
from: www.uspto.gov - patent no. 4,376,537