[guess_row][guess_col] x,y axis

In this exercise

How does python know that
board[guess_row][guess_col]
correlates to the x,y axes respectively?

Like I said in your other thread, it doesn’t. It’s up to you to make it so.

If you put rows in a list, then you can get rows back out by looking in that list.

If you have a list representing a row then you can get individual values out my looking in that list.