This was developed in a rush during a weekend while evading Reddit devs and helping coordinating a campaign on https://www.reddit.com/r/place/. Don't judge me.
It downloads this image automatically and draws it:
Note: Reddit's event is over. This no longer works.
Press F12 on Chrome and paste this on console:
$.getScript("https://rawgit.com/brunocassol/r-place-brazil-bot/master/bot.js")
converter.html is an image to template converter. It converts images to javascript template format.
It also demonstrates how the bot encrypts coordinates inside an image. test.png is represent X,Y coordinates encoded in a PNG.
MIT