# Board[0]

#1

My bad I accidentally sent the post, I figured out the way to solve it.

Anyways for anyone that's curious:

In this lesson the `random_col` code changed from this:

``````def random_col(board):
return randint(0, len(board) - 1)``````

to this:

``````def random_col(board):
return randint(0, len(board[0]) - 1)``````

From my understanding `board[0]` would print out 5 'O's (the first row of `board`), and the usage of `len() - 1` is to make sure the values change when the grid size changes.

So if the rows and columns do not form a perfect square (say it's 4 x 5 instead of 4 x 4), then the rows are limited to 4 and the columns limited to 5.

If we still use `len(board) - 1` here, the value would return to be 4, so the integer will random between 0 and 4. If we use `len(board[0]) - 1` instead, the value would return as 3, so the integer will random between 0 and 3.

Since there are only 4 rows now, `len(board) - 1` will have a chance of randoming into a row that does not exist in the 4x5 grid. Therefore `len(board[0]) - 1` will be a more accurate solution.

#2

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