You can run the battle ship guesser yourself in the command line. Just download that attached script and run it from the command line: path-to-script/battleship.
Note you will need to have Erlang installed on your machine for this to work (but you do not need Elixir).
Or, build it yourself by cloning the repo, checking out this tag, installing the deps (mix deps.get) and running mix escript.build. You will need both Erlang and Elixir for this.