![]() Lambda c: c.wins/c.visits + UCTK * sqrt(2*log(self.visits)/c.visits to vary the amount of Often a constant UCTK is applied so we have """ Use the UCB1 formula to select a child node. ayerJustMoved = ayerJustMoved # the only part of the state that the Node needs later Self.untriedMoves = state.GetMoves() # future child nodes Self.parentNode = parent # "None" for the root node Self.move = move # the move that got us to this node - "None" for the root node Note wins is always from the viewpoint of playerJustMoved.ĭef _init_(self, move = None, parent = None, state = None): Print("", board, board, board, end = " | ") # The marking script doesn't seem to like this either, so just take it out to submit """ Get the game result from the viewpoint of playerjm.įor (x,y,z) in : """ Get all possible moves from this state. ![]() If move >= 1 and move <= 9 and move = int(move) and self.board = 0: """ Update a state by carrying out the given move. """ Create a deep clone of this game state. ayerJustMoved = 2 # At the root pretend the player just moved is player 2 - player 1 has the first move All codes are here: from math import log, sqrt ![]() I used node class and UCT class on the website and added my 9 board tic-tac-toe game state class and some other codes. I'm trying to learn MCTS and I found some code on here: It's kind like ultimate tic-tac-toe but if one of the sub-board is won the game ends. The place of the last piece is placed decides which sub-board to place your piece. The rules of the game is like the regular tic-tac-toe but with 9 3x3 sub-boards. I'm trying to implement Monte Carlo tree search to play 9-board tic-tac-toe in Python. In order to make it easy for others to help me I have put all the codes here it will starts as 2 agents compete each other. ![]()
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