gem install bundler
bundle install
bundle exec rake
- https://en.wikipedia.org/wiki/Set_%28game%29
- http://smart-games.org/en/set_classic/start/10
- https://github.com/zeljkofilipin/set-game-rb
- http://filipin.eu/automating-the-set-game
- https://youtu.be/4FMB55f3bYI
