Question

Complete the player_turn() function that completes a single turn of the game Tic-Tac-Toe (also called Noughts and Crosses). The function takes 3 parameters: 1. The first parameter is called board. It is a list of length 3, where each entry is a string with 3 characters representing a row on a Tic-Tac-Toe board. Each character in a row represents a slot on the Tic-Tac-Toe board with the "#" character indicating an empty slot. An empty board looks like this: ### ### ### 2. The second parameter is called position. You can assume that it will always be an integer value between 1 and 9 inclusive, indicating the slot on the Tic-Tac-Toe board the player is interested in. Slots on the board are numbered as follows: 123 456 789 3. The third parameter is called player. It is a single character string indicating whether the player is "0" or "X". The function should update the board with the player character if the slot they have chosen is vacant. Otherwise the function prints the following error message: "Invalid move, try again." Two examples of the function being used are shown below. Note that the print_board() function has been provided for you and does not need to be defined.
$For example: Result Start ### Test board - [###, ##*, ###] print(Start) print() print_board(board) print(\nTurn 1)$

Python

Answer 1

def player_turn(board, position, player):
    i = (position - 1) // 3
    j = (position - 1) % 3
    if board[i][j] != '#':
        print("Invalid move, try again.")
    board[i] = board[i][:j] + player + board[i][j+1:]