Thanks for this extensive very good answer! This is what I was looking for.
I successfully got PPO for a multiplayer card game working. I also let the network learn correct moves and it has learned 16.95 of 17 after 8h of training (on single i7 cpu no gpu used). After 8h training is slowed down dramastically and is not proceeding much. Any ideas on what I can do next? Any suggestion for an algo I should try next?
This is my repro:
Most recent version will be (soon) here:

  
      
      GitHub
  
  
    

CesMak/mcts_cardgame 8

Reinforcement Learning (PPO) applied to a multiplayer simple card game (Witches) - CesMak/mcts_cardgame