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
Word Sum Puzzle alphabet: A, a = 1 B, b = 2 C, c = 3 D, d = 4 Z, z = 26 A curved part of a path: _ _ (7) _ _ _ _ (25) The first line of the puzzle presents a clue; in this puzzle, "A curved part of a path" is the puzzle’s clue. The other lines of the puzzle are its hints. This puzzle has two hints: FIRST HINT _ _ (7) This hint indicates that the first two letters of the answer make a sum of 7. Hence, the first two letters can be: A