The Puzzle is based on a project, I had found on youtube channel: "Kenny Yip Coding" (I'd like to thank the channel owner for his work). But his project didn't allow to choose more than one image to set, what makes the fun boring quickly. My App has few problems, I hasn't managed yet. There is a problem width working on smartphones. It could be solve width an addition to Node.js: "drag-drop-touch". I've written the code widthout Node, but I will resolove it in the future I hope... The application in this form, requires unfortunately, a lot of work to add some new images to. If we wante do that, we will have cut a picture into pieces in a graphic program and after that we can add it to the program folder. Also it needs to be in specific size. So the app looks nicely, but it is quite rough-hewn.