Python Program for Tic Tac Toe
Updated on Dec 30, 2024 | 6 min read | 5.8k views
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Updated on Dec 30, 2024 | 6 min read | 5.8k views
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Tic tac toe is one of the most widely played games. It takes pride in being the best time killer game that can be played anywhere and anytime. No equipment is required to play this game. All you need is a pen and paper. Let’s understand how the game is played before we dive deeper into the Python implementation of this game.
The game can be played between two individuals. Initially, a 3×3 square grid board is drawn. The player who chooses to play first opts ‘X’ as his selection. He draws it within any of the squares of the board. Now, the second player gets a chance to insert ‘O’ in any of the remaining squares. The ‘X’ and ‘O’ are alternatively drawn on the empty squares. This is continued until one of the players wins the game by drawing three consecutive identical marks either in vertical, horizontal or diagonal directions. If all spots are filled and none of the two draws three consecutive symbols, the game is declared to be a draw.
Tic Tac Toe in Python will utilize object-oriented programming (OOP) and classes to put the game into action. To begin with, we shall establish a category for the Tic Tac Toe Python code for beginners. This code will feature a 3×3 grid with a view forming the Tic Tac Toe board. The next step is to design a class for the players using Tic Tac Toe Python Code. This class can have a name and a symbol (either ‘X’ or ‘O’).
We will use the Minimax algorithm to create an unbeatable AI opponent. This algorithm analyses all potential moves and their results to find the best move. The Minimax algorithm ensures that the AI opponent never loses, and it will always make the best move possible.
This algorithm analyses all feasible movements and their outcomes to discover the best suitable move. With the Minimax set of rules, the AI opponent will never lose, and it will usually make the best possible play.
The minimax is an adversarial search type algorithm used to generate and explore the game trees. It finds a wider range of applications in solving the zero-sum games. These are the games where the gain of one side is equivalent to the loss on the other side. So, the sum of all the gains and losses will yield zero as a result. There are subtle differences between the conventional searching algorithms and the adversarial search. One main difference is the addition of opponents into a mix. This algorithm is used to aid the computer in playing the turns of both opponent and the player and explore the best possible move. In the Python automatic tic tac toe implementation, the minimax algorithm is used to enable the automatic moves by the program, alternatively.
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This section discusses the implementation of the automatic tic tac toe game using Python code. The programming does not require user inputs. This is because the program automatically plays the game. However, developing an amazing game is great fun. Let’s learn how this can be accomplished.
The Python libraries ‘numpy’ and ‘random’ are used to develop this game. Instead of enabling the user to mark on the display board, the code abruptly chooses a place on the display board and places a mark. After each turn, the board is displayed until one of the players wins. If the game is a tie between the players, the value returned is -1.
The main function used in the Python code is the play_game(). This function performs the below-mentioned tasks.
Another way to implement the AI opponent is by using random moves. This implementation is easier to code but does not guarantee an unbeatable opponent. With this implementation, the AI opponent randomly selects an empty cell on the board.
Pygame is a collection of Python modules that allows developers to create video games and multimedia programs. It offers a basic manner of dealing with user input and showing visuals. To generate a graphical user interface for the game, the Pygame library can be used.
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