Why do we see approx 44% win rate at start of TTT Large?

SanchoGGP / ggp-base

The General Game Playing Base Package

8 stars 4 forks source link

Why do we see approx 44% win rate at start of TTT Large? #300

Open SteveDraper opened 9 years ago

SteveDraper commented 9 years ago

In TicTacToe large we show approx 44% as the expected value, even though we trivially draw it. How can random playouts and initial MCTS expansion converge to a role-asymmetric result like this??

arr28 commented 9 years ago

Confirming what you saw...

Playing xplayer (1st role), I see an expected score of 56 at the end of 30s MG + 45s first turn.
Playing oplayer, I see an expected score of 44.