diff --git a/gothok/game.py b/gothok/game.py
index c42ae1a..3e5dbc4 100644
--- a/gothok/game.py
+++ b/gothok/game.py
@@ -112,6 +112,16 @@ class GameNode(object):
     def runSimulation(self):
         self.backPropagate(self.simulate())
 
+    def simulate(self):
+        state = self.state
+
+        while not state.gameOver:
+            moves = state.getPossibleMoves
+            randomMove = random.choice(possibleMoves)
+            state.playMove(randomMove)
+
+        return self.state.result(state)
+
     def getChildren(self):
         possibleMoves = self.state.getPossibleMoves()
         children = []