Digital embroidery was also invented by Japanese Nishimoto in 1987. It means "drawing logic" and is also called "numbering". "Digital Embroidery" first appeared in Japanese educational magazines, and players played games with paper and pens. Digital embroidery is a logical game, which draws a black-and-white bitmap by guessing. In a grid, each row and column has a set of numbers, and players need to fill or keep the grid blank according to them, and finally they can draw a picture from it. For example, "4, 8, 3" means that there are three independent lines on a row or column, occupying 4, 8, and 3 grids respectively, with at least one space between each line. It is suggested that players fill the grid with black and mark the grid that cannot be filled with "X". After reading the whole article, I finally have a general understanding of the rules of the game: 1 this number represents the number of squares filled continuously, and the squares in each row are filled according to this number. More than two numbers indicate that there must be at least one space between each row and each column of continuously filled cells.