@startuml

!include skinparams.puml

actor "Human Player" as player
actor "GUI Program" as gui
actor "Human User" as user

usecase "Play a match" as play
usecase "Use as backend for machine player" as backend
usecase "Generate a move" as genMove
usecase "Train the engine" as train

player --> play
gui --> backend
user --> genMove
gui --> genMove
user --> train

@enduml