You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
What steps will reproduce the problem?
1. Run the following
from games import *
ttt = TicTacToe(3,3,3)
play_game(ttt,alphabeta_player,alphabeta_player)
2. Note that X always win, and that O seems to help X to win
What is the expected output? What do you see instead?
Expected is that there will always be a draw.
What version of the product are you using? On what operating system?
Ubuntu 10.10
Here is a patch to solve the problem.
Check which player is making the move and negate the utility when the player is
O.
class TicTacToe(Game):
...
def utility(self, state, player):
"Return the value to X; 1 for win, -1 for loss, 0 otherwise."
if player=="O":
return -state.utility
else:
return state.utility
Original issue reported on code.google.com by daniel.u...@gmail.com on 28 Feb 2011 at 6:55
The text was updated successfully, but these errors were encountered:
Original issue reported on code.google.com by
daniel.u...@gmail.com
on 28 Feb 2011 at 6:55The text was updated successfully, but these errors were encountered: