I think this is based on paper by University of Maryland [1] It uses the same concept to solve recaptcha[2] [1] http://uncaptcha.cs.umd.edu/papers/uncaptcha_wo

I think this is based on paper by University of Maryland [1] It uses the same concept to solve recaptcha[2] [1] http://uncaptcha.cs.umd.edu/papers/uncaptcha_woot17.pdf http://uncaptcha.cs.umd.edu/papers/uncaptcha_woot17.pdf [2] https://github.com/ecthros/uncaptcha2/blob/master/README.md https://github.com/ecthros/uncaptcha2/blob/master/README.md