Mr. Yang invented the first version (INSPIRE) in 1992 and developed the latest two versions in 2015. These creative new puzzles/games are the best training that challenge the mind and stimulate eye/hand coordination.
Each of six rotating discs has slots to hold eight numbers. In the solved position, each disc has the numbers 1 to 4 of its color in counterclockwise numerical order along the edge and 5 to 8 of its color in numerical order, except the white disc which has the number 1 to 4 in counterclockwise numerical order along the edge and 5 to 7 in numerical order and one empty slot. Where two discs are tangent and one of the discs has an empty slot at that position, the number of the other disc at that position can be slid into the empty slot. The object is to mix up the puzzle and then restore to the solved state.
Material : ABS Hot-Stamped numbers Retail Packaging Inventor : Mr. Yang Ju-Hsun