26_check_tic_tac_toe.py

# 26 Check Tic Tac Toe
# Author: Christian Million
# Started: 2020-08-18
# Completed: 2020-08-18
# Last Modified: 2020-08-18
#
# Prompt: https://www.practicepython.org/exercise/2015/11/16/26-check-tic-tac-toe.html
#
# This exercise is Part 2 of 4 of the Tic Tac Toe exercise series. The other exercises are: Part 1, Part 3, and Part 4.
# 
# As you may have guessed, we are trying to build up to a full tic-tac-toe board. However, this is significantly more than half an hour of coding, so we’re doing it in pieces.
# 
# Today, we will simply focus on checking whether someone has WON a game of Tic Tac Toe, not worrying about how the moves were made.
# 
# If a game of Tic Tac Toe is represented as a list of lists, like so:
# 
# game = [[1, 2, 0],
# 	     [2, 1, 0],
# 	     [2, 1, 1]]
# where a 0 means an empty square, a 1 means that player 1 put their token in that space, and a 2 means that player 2 put their token in that space.
# 
# Your task this week: given a 3 by 3 list of lists that represents a Tic Tac Toe game board, tell me whether anyone has won, and tell me which player won, if any. A Tic Tac Toe win is 3 in a row - either in a row, a column, or a diagonal. Don’t worry about the case where TWO people have won - assume that in every board there will only be one winner.
# 
# Here are some more examples to work with:
# 
# winner_is_2 = [[2, 2, 0],
# 	            [2, 1, 0],
# 	            [2, 1, 1]]
# 
# winner_is_1 = [[1, 2, 0],
# 	            [2, 1, 0],
# 	            [2, 1, 1]]
# 
# winner_is_also_1 = [[0, 1, 0],
#                    [2, 1, 0],
# 	                 [2, 1, 1]]
# 
# no_winner = [[1, 2, 0],
# 	            [2, 1, 0],
# 	            [2, 1, 2]]
# 
# also_no_winner = [[1, 2, 0],
# 	                [2, 1, 0],
# 	                [2, 1, 0]]