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Tic Tac Toe Game using PyQt5 in Python

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In this article , we will see how we can create a Tic Tac Toe game using PyQt5. Tic-tac-toe, noughts, and crosses, or Xs and Os is a paper-and-pencil game for two players, X and O, who take turns marking the spaces in a 3×3 grid. The player who succeeds in placing three of their marks in a horizontal, vertical, or diagonal row is the winner.

Below is how the Tic Tac Toe game will look like :

Tic Tac Toe gui

GUI implementation steps :
1. Create a list of push buttons 
2. Arrange them in 3×3 order and add font to them 
3. Create a label below the push buttons that tells the result 
4. Set alignment and font to the label 
5. Add another push button for reset the game at the bottom 

Back end implementation steps :
1. Create two variable to know whose chance is and to know how many chances are completed 
2. Add same action to the list of buttons such that each buttons should call the same action 
3. Inside the action method get the button by whom method is called using sender method 
4. Set the text to the button according to the chance and make it disabled so that it can’t be pressed again and call the who_wins method 
5. Set text according to the answer returned by the who_wins method 
6. Inside the who_wins method check if rows, columns and diagonals are crossed or not. 
7. If someone won the match set the text to the label and make all the buttons disabled 
8. Add action to the reset button 
9. Inside the reset button action make the variable value set to the starting value and make all the push button enabled and make the label and button text to blank. 

Below is the implementation :


# importing required libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
# create a Window class
class Window(QMainWindow):
    # constructor
    def __init__(self):
        # setting title
        self.setWindowTitle("Python ")
        # setting geometry
        self.setGeometry(100, 100,
                         300, 500)
        # calling method
        # showing all the widgets
    # method for components
    def UiComponents(self):
        # turn
        self.turn = 0
        # times
        self.times = 0
        # creating a push button list
        self.push_list = []
        # creating 2d list
        for _ in range(3):
            temp = []
            for _ in range(3):
            # adding 3 push button in single row
        # x and y co-ordinate
        x = 90
        y = 90
        # traversing through push button list
        for i in range(3):
            for j in range(3):
                # setting geometry to the button
                self.push_list[i][j].setGeometry(x*i + 20,
                                                 y*j + 20,
                                                 80, 80)
                # setting font to the button
                self.push_list[i][j].setFont(QFont(QFont('Times', 17)))
                # adding action
        # creating label to tell the score
        self.label = QLabel(self)
        # setting geometry to the label
        self.label.setGeometry(20, 300, 260, 60)
        # setting style sheet to the label
                                 "border : 3px solid black;"
                                 "background : white;"
        # setting label alignment
        # setting font to the label
        self.label.setFont(QFont('Times', 15))
        # creating push button to restart the score
        reset_game = QPushButton("Reset-Game", self)
        # setting geometry
        reset_game.setGeometry(50, 380, 200, 50)
        # adding action action to the reset push button
    # method called by reset button
    def reset_game_action(self):
        # resetting values
        self.turn = 0
        self.times = 0
        # making label text empty:
        # traversing push list
        for buttons in self.push_list:
            for button in buttons:
                # making all the button enabled
                # removing text of all the buttons
    # action called by the push buttons
    def action_called(self):
        self.times += 1
        # getting button which called the action
        button = self.sender()
        # making button disabled
        # checking the turn
        if self.turn == 0:
            self.turn = 1
            self.turn = 0
        # call the winner checker method
        win = self.who_wins()
        # text
        text = ""
        # if winner is decided
        if win == True:
            # if current chance is 0
            if self.turn == 0:
                # O has won
                text = "O Won"
            # X has won
                text = "X Won"
            # disabling all the buttons
            for buttons in self.push_list:
                for push in buttons:
        # if winner is not decided
        # and total times is 9
        elif self.times == 9:
            text = "Match is Draw"
        # setting text to the label
    # method to check who wins
    def who_wins(self):
        # checking if any row crossed
        for i in range(3):
            if self.push_list[0][i].text() == self.push_list[1][i].text() \
                    and self.push_list[0][i].text() == self.push_list[2][i].text() \
                    and self.push_list[0][i].text() != "":
                return True
        # checking if any column crossed
        for i in range(3):
            if self.push_list[i][0].text() == self.push_list[i][1].text() \
                    and self.push_list[i][0].text() == self.push_list[i][2].text() \
                    and self.push_list[i][0].text() != "":
                return True
        # checking if diagonal crossed
        if self.push_list[0][0].text() == self.push_list[1][1].text() \
                and self.push_list[0][0].text() == self.push_list[2][2].text() \
                and self.push_list[0][0].text() != "":
            return True
        # if other diagonal is crossed
        if self.push_list[0][2].text() == self.push_list[1][1].text() \
                and self.push_list[1][1].text() == self.push_list[2][0].text() \
                and self.push_list[0][2].text() != "":
            return True
        #if nothing is crossed
        return False
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app

Output : 

Last Updated : 06 Apr, 2023
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