If-then operation based on the dual-processor Python Tic-Tac-Toe program

Question

I wrote this basic if-thentic tac toe game instruction , but its super-repetition. I was wondering if there is an easier way to make this look more elegant and work more efficiently. I basically want to create a 3x3 grid with coordinates 1-9. Then I invite the player to enter one place, and this place is replaced by either Xor O. Then I repeated until the completed board was reached. Here is my code.

import sys


def game():
    global z1, z2, z3, z4, z5, z6, z7, z8, z9
    print("Player one is X player two is O \n")

    X1 = int(input("Player one, where would you like to put your first X?: "))
    if X1 == 1:
        z1 = "X"
    elif X1 == 2:
        z2 = "X"
    elif X1 == 3:
        z3 = "X"
    elif X1 == 4:
        z4 = "X"
    elif X1 == 5:
        z5 = "X"
    elif X1 == 6:
        z6 = "X"
    elif X1 == 7:
        z7 = "X"
    elif X1 == 8:
        z8 = "X"
    elif X1 == 9:
        z9 = "X"
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)
    O1 = int(input("Player one, where would you like to put your first O?: "))
    if O1 == 1:
        z1 = "O"
    elif O1 == 2:
        z2 = "O"
    elif O1 == 3:
        z3 = "O"
    elif O1 == 4:
        z4 = "O"
    elif O1 == 5:
        z5 = "O"
    elif O1 == 6:
        z6 = "O"
    elif O1 == 7:
        z7 = "O"
    elif O1 == 8:
        z8 = "O"
    elif O1 == 9:
        z9 = "O"
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)
    X2 = int(input("Player one, where would you like to put your next X?: "))
    if X2 == 1:
        z1 = "X"
    elif X2 == 2:
        z2 = "X"
    elif X2 == 3:
        z3 = "X"
    elif X2 == 4:
        z4 = "X"
    elif X2 == 5:
        z5 = "X"
    elif X2 == 6:
        z6 = "X"
    elif X2 == 7:
        z7 = "X"
    elif X2 == 8:
        z8 = "X"
    elif X2 == 9:
        z9 = "X"
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)
    O2 = int(input("Player one, where would you like to put your next O?: "))
    if O2 == 1:
        z1 = "O"
    elif O2 == 2:
        z2 = "O"
    elif O2 == 3:
        z3 = "O"
    elif O2 == 4:
        z4 = "O"
    elif O2 == 5:
        z5 = "O"
    elif O2 == 6:
        z6 = "O"
    elif O2 == 7:
        z7 = "O"
    elif O2 == 8:
        z8 = "O"
    elif O2 == 9:
        z9 = "O"
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)
    X3 = int(input("Player one, where would you like to put your next X?: "))
    if X3 == 1:
        z1 = "X"
    elif X3 == 2:
        z2 = "X"
    elif X3 == 3:
        z3 = "X"
    elif X3 == 4:
        z4 = "X"
    elif X3 == 5:
        z5 = "X"
    elif X3 == 6:
        z6 = "X"
    elif X3 == 7:
        z7 = "X"
    elif X3 == 8:
        z8 = "X"
    elif X3 == 9:
        z9 = "X"
    board()
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)
    O3 = int(input("Player one, where would you like to put your next O?: "))
    if O3 == 1:
        z1 = "O"
    elif O3 == 2:
        z2 = "O"
    elif O3 == 3:
        z3 = "O"
    elif O3 == 4:
        z4 = "O"
    elif O3 == 5:
        z5 = "O"
    elif O3 == 6:
        z6 = "O"
    elif O3 == 7:
        z7 = "O"
    elif O3 == 8:
        z8 = "O"
    elif O3 == 9:
        z9 = "O"
    board()
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)
    X4 = int(input("Player one, where would you like to put your next X?: "))
    if X4 == 1:
        z1 = "X"
    elif X4 == 2:
        z2 = "X"
    elif X4 == 3:
        z3 = "X"
    elif X4 == 4:
        z4 = "X"
    elif X4 == 5:
        z5 = "X"
    elif X4 == 6:
        z6 = "X"
    elif X4 == 7:
        z7 = "X"
    elif X4 == 8:
        z8 = "X"
    elif X4 == 9:
        z9 = "X"
    board()
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)
    O4 = int(input("Player one, where would you like to put your next O?: "))
    if O4 == 1:
        z1 = "O"
    elif O4 == 2:
        z2 = "O"
    elif O4 == 3:
        z3 = "O"
    elif O4 == 4:
        z4 = "O"
    elif O4 == 5:
        z5 = "O"
    elif O4 == 6:
        z6 = "O"
    elif O4 == 7:
        z7 = "O"
    elif O4 == 8:
        z8 = "O"
    elif O4 == 9:
        z9 = "O"
    board()
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)
    X5 = int(input("Player one, where would you like to put your next X?: "))
    if X5 == 1:
        z1 = "X"
    elif X5 == 2:
        z2 = "X"
    elif X5 == 3:
        z3 = "X"
    elif X5 == 4:
        z4 = "X"
    elif X5 == 5:
        z5 = "X"
    elif X5 == 6:
        z6 = "X"
    elif X5 == 7:
        z7 = "X"
    elif X5 == 8:
        z8 = "X"
    elif X5 == 9:
        z9 = "X"
    board()
    print(z1, "|", z2, "|", z3)
    print(z4, "|", z5, "|", z6)
    print(z7, "|", z8, "|", z9)

def board():

    if z1 == 'X' and z2 == "X" and z3 == "X":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("X wins")
        sys.exit()
    elif z4 == 'X' and z5 == "X" and z6 == "X":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("X wins")
        sys.exit()
    elif z7 == 'X' and z8 == "X" and z9 == "X":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("X wins")
        sys.exit()
    elif z1 == 'X' and z4 == "X" and z7 == "X":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("X wins")
        sys.exit()
    elif z2 == 'X' and z5 == "X" and z8 == "X":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("X wins")
        sys.exit()
    elif z3 == 'X' and z6 == "X" and z9 == "X":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("X wins")
        sys.exit()
    elif z1 == 'X' and z5 == "X" and z9 == "X":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("X wins")
        sys.exit()
    elif z3 == 'X' and z5 == "X" and z7 == "X":
        print("X wins")
        sys.exit()
    elif z1 == 'O' and z2 == "O" and z3 == "O":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("O wins")
        sys.exit()
    elif z4 == 'O' and z5 == "O" and z6 == "O":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("O wins")
        sys.exit()
    elif z7 == 'O' and z8 == "O" and z9 == "O":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("O wins")
        sys.exit()
    elif z1 == 'O' and z4 == "O" and z7 == "O":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("O wins")
        sys.exit()
    elif z2 == 'O' and z5 == "O" and z8 == "O":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("O wins")
        sys.exit()
    elif z3 == 'O' and z6 == "O" and z9 == "O":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("O wins")
        sys.exit()
    elif z1 == 'O' and z5 == "O" and z9 == "O":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("O wins")
        sys.exit()
    elif z3 == 'O' and z5 == "O" and z7 == "O":
        print(z1, "|", z2, "|", z3)
        print(z4, "|", z5, "|", z6)
        print(z7, "|", z8, "|", z9)
        print("O wins")
        sys.exit()

print("Here is your Tic-Tac-Toe board")

z1 = ' '
z2 = ' '
z3 = ' '
z4 = ' '
z5 = ' '
z6 = ' '
z7 = ' '
z8 = ' '
z9 = ' '
print("(1) | (2) | (3)")
print("(4) | (5) | (6)")
print("(7) | (8) | (9)")

game()

Answer 1

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class board():
    # make the entire board a dictionary that can be accessed via keys
    board = {"z1": "-", "z2": "-", "z3": "-",
             "z4": "-", "z5": "-", "z6": "-",
             "z7": "-", "z8": "-", "z9": "-"}

    # method that uses passed in variables to change board values by key
    def set_z(self, choice, player_symbol):
        self.board[choice] = player_symbol

    # method to print the current state of the board using dictionary 
    # keys
    def show_board(self):
        print(self.board["z1"], "|", self.board["z2"], "|", 
              self.board["z3"])
        print(self.board["z4"], "|", self.board["z5"], "|", 
              self.board["z6"])
        print(self.board["z7"], "|", self.board["z8"], "|",  
              elf.board["z9"])

# instantiate the board class above as an object called 'new_board'            
new_board = board()

# access the instantiated object via its setter method 'set_z'
# and print the current state of the board object
def x_player_input():
    X1 = input("Player one, where would you like to put your first X?: ")
    new_board.set_z(X1, 'X')
    new_board.show_board()

def o_player_input():
    O1 = input("Player two, where would you like to put your first o?: ")
    new_board.set_z(O1, 'O')
    new_board.show_board()

# this just calls each player input method once; you would need to think
# of a way to call these until some win/loss logic declares the game 
# outcome
x_player_input()
o_player_input()

Answer 2

Tic-Tac-Toe. , if-else. , Tic-Tac-Toe 5-10 . minimax .