I was playing Minecraft with my son, and besides clicking on things, it also has some commands that you can type in to change blocks. For example you can fill r

I was playing Minecraft with my son, and besides clicking on things, it also has some commands that you can type in to change blocks. For example you can fill rectangular areas with the same block. I got curious about whether you could compress images by reducing them into a bunch of rectangles. Due to some limitations it wouldn't really work for images, but I got it working for QR codes: http://craftqr.com/ http://craftqr.com/