failing test - trying to find a winner in third column
passing test - trying to find a winner in third column
failing test - trying to find a winner diagonally from left
passing test - trying to find a winner diagonally from left
refactoring after passing test - trying to find a winner diagonally from left
failing test - trying to find a winner diagonally from right
passing test - trying to find a winner diagonally from right
failing test - trying to find a winner x in second row, when we have o's in a row at the first
passing test - trying to find a winner x in second row, when we have o's in a row at the first
passing test - trying to find a winner x in third column, when we have o's in a row at the first