Implementation of connect4 game (Forza 4).
sequenceDiagram
participant Alice
participant Bob
Alice->>John: Hello John, how are you?
loop Healthcheck
John->>John: Fight against hypochondria
end
Note right of John: Rational thoughts <br/>prevail!
John-->>Alice: Great!
Arturo-->>Benny: Davvero??
John->>Bob: How about you?
Bob-->>John: Jolly good!