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 # Tic Tac Toe notes
 
+
 ## Checkpoint 1 Notes
 
 Which class is responsible for each of the following behaviors?
@@ -7,13 +8,23 @@ For each, explain how the behavior is accomplished.
 
 ### Checking to see whether the game is over
 
+   The game inspects the board for winning patterns
+   (three identical non-empty marks in any row, column, or diagonal).
+   It also checks whether there are any empty squares left — if there
+   are none and there is no winner the result is a draw.
+
 ### Determining which actions are available at a particular state
 
+   The function scans the board representation and returns the indices or coordinate pairs for empty cells.
+   If the state is terminal it returns an empty list.
+
 ### Showing the board
 
+   The view module provides formatting and printing utilities that convert the internal state into a nice 3x3 grid
+
 ### Choosing which action to play on a turn
 
-
+   Scans the board for who went last; giving the next placement opportunity to the person who went before the move that was just played 
 ## Checkpoint 2 Notes
 
 ### TTT Strategy