Support multiple concurrent games:

• When a user first visits your site, they should be able to enter a game name.
• Users who select different game names should be able to play completely independent games of Bulls and Cows concurrently.
• There should be a UI element that lets players leave a game and get back to the game name entry screen.

Support multiple concurrent users of each game. This changes the game flow as follows:

• Arriving user enters game name and user name.
• Games start in setup mode, where multiple users can join before play starts.
• In setup mode, each user can chose to either be a player or an observer and if they are a player they can toggle if they’re ready.
• Once all players are ready, the game starts.
• Anyone who joins after the game starts is an observer.
• Observers can see what’s happening, but can’t play.
• Guessing happens in turns. In each turn, first all players make a guess concurrently, and then all guesses, who made them, and their bulls/cows scores are
• shown to everyone.
• Players should be able to “Pass”, or make no guess for a turn.
• Players have 30 seconds to make a guess or they automatically pass.
• Whoever guesses the right number first wins. Multiple winners can happen if multiple players guess the answer on the same turn.
• Once someone wins, the game goes back to setup mode, displaying who the last winners were and the win/loss count of each user.
• At least four players should be supported, with unlimited observers.
• Players should be able to leave a game and rejoin by simply entering the same name.
• Win/loss counts last until the server restarts.
• Mechanics inconsistent with this flow from the single player version - like losing after 8 bad guesses - don’t carry over.

To start your Phoenix server:

• Install dependencies with mix deps.get
• Install Node.js dependencies with npm install inside the assets directory
• Start Phoenix endpoint with mix phx.server

Now you can visit localhost:4000 from your browser.