diff --git a/main.py b/main.py
index d2f916d..ce7fa5b 100644
--- a/main.py
+++ b/main.py
@@ -122,6 +122,16 @@ def evaluate(inp: Any, count: int, throw: str) -> tuple:
         return data
     elif inp == "k":
         global score
+
+        if score == 0:
+            last_two = players[pointer][-2:]
+            if len(last_two) > 1:
+                last_two_sum = sum(last_two)
+                if last_two_sum == 0:
+                    score = -sum(players[pointer])
+                    clear()
+                    input("Po třech nulových hodech bylo vaše skóre vynulováno.")
+
         players[pointer].append(score)
         aggr[pointer] = sum(players[pointer])
         score = 0
@@ -225,7 +235,18 @@ def game(data: tuple):
                 th = throw(count)
             clear()
             print(f"Vítězné skóre: {final_score}.")
-            print(f"Na tahu je {pointer} ({aggr[pointer]}).")
+
+            strikes = ""
+
+            if len(players[pointer]) > 0: 
+                if players[pointer][-1:][0] == 0:
+                    strikes = "x"
+                    if players[pointer][-2:][0] == 0:
+                        strikes += "x"
+            else:
+                strikes = ""
+
+            print(f"Na tahu je {pointer} ({aggr[pointer]}{strikes}).")
             print(show_throw(th))
             if not check_value(th) and data[2] == "" and count != 0:
                 global score