diff --git a/notes.md b/notes.md
index 9c0b4a8..6d34917 100644
--- a/notes.md
+++ b/notes.md
@@ -72,6 +72,8 @@ def __init__(self, name): The init action sets up the player's ability to intera
         action = int(prompt("> ", type=choices, show_choices=False)) This uses "int" to assign integers to the spaces in the tic tac toe game, and shows the choices in the form of numerical spaces (choices) and X and Os (moves already played/invalid options).
 
 ## Checkpoint 2 Notes
+A simple way to check and see if ther eis a winner is to list all of the options for a win, then let the program check threm. It would iterate through a list of combinations and check one by one. 
+So, I started by drawing the board with the 1-8 integers. Then listed the options based off the wins available. I started by organizing the, into the three ways to win, rows, columns, then diagonals to ensure that I didn't miss any. After this I continued with the video and saw that you had them same idea! That was really exciting to reaize, and reassuring that my thought process was making sense. I used the video to help write the remaining code for the combos and listing them, then iterating through them and checking for a winning move. 
 
 ### TTT Strategy
 
diff --git a/ttt/game.py b/ttt/game.py
index 2f0e302..d6dfe09 100644
--- a/ttt/game.py
+++ b/ttt/game.py
@@ -58,4 +58,24 @@ class TTTGame:
 
     def check_winner(self, state, symbol):
         "Checks whether the player with `symbol` has won the game."
+        combo = [
+            [0, 1, 2],
+            [3, 4, 5],
+            [6, 7, 8], 
+            [0, 3, 6], 
+            [1, 4, 7], 
+            [2, 5, 8], 
+            [0, 4, 8],
+            [2, 4, 6],
+        ]
+        for combo in combos: 
+            if self.check_winning_combo(state, symbol, combo):
+                return True
         return False
+    def check_winning_combo(self, state, symbol, combo): 
+        "Checks to see if the X's and O'x are in a row, column, or diagonal- to create a winning three in a row."
+
+        for index in combo: 
+            if state["board"][index] != | symbol:
+                return False 
+        return True