"Snake" is one of the most popular puzzles of our time. The design of the toy is quite straightforward: it consists of 24 isosceles triangular prisms connected by hinges. But, as you know, everything ingenious is simple: more than a hundred of two- and three-dimensional figures from a snake are known. And how many more can be invented! This puzzle, which became a hit back in the 80s. of the last century, enjoys constant popularity today. She perfectly develops spatial and logical thinking, fantasy, imagination.