diff --git a/dice_stats.py b/dice_stats.py
index 83a99cb..4c0d05e 100644
--- a/dice_stats.py
+++ b/dice_stats.py
@@ -19,6 +19,36 @@ class FiveDice:
                 return False
         return True
 
+    def is_three_of_a_kind(self):
+        for face in self.faces():
+            if face != face != face:
+                return False
+        return True
+
+    def is_four_of_a_kind(self):
+        for face in self.faces():
+            if face != face != face != face:
+                return False
+        return True
+
+dice = FiveDice()
+successes = 0
+trials = 1000000
+for trial in tqdm(range(trials)):
+    dice.roll()
+    if dice.is_three_of_a_kind():
+        successes += 1
+print(successes/trials)
+
+dice = FiveDice()
+successes = 0
+trials = 1000000
+for trial in tqdm(range(trials)):
+    dice.roll()
+    if dice.is_four_of_a_kind():
+        successes += 1
+print(successes/trials)
+
 dice = FiveDice()
 successes = 0
 trials = 1000000
@@ -26,7 +56,6 @@ for trial in tqdm(range(trials)):
     dice.roll()
     if dice.all_ones():
         successes += 1
-
 print(successes/trials)