Join elements by drawing a line

[dora_paz (Dora)]

This post might give you and idea. Set border of numbers to a specific color and background to another and then when canvas dragged check background color. If background color for example is light blue score else draw line

Canvas set borders in image and play alarm if border is touched

One thought is to use a background image in canvas. The number or letter must have different color from the background. When canvas dragged check background color. If background color for example is light blue play sound else draw line. [image] [blocks - 2021-01-15T205757.716]