diff --git a/1] guessing game/main.py b/1] guessing game/main.py
index e69de29..313eabc 100644
--- a/1] guessing game/main.py	
+++ b/1] guessing game/main.py	
@@ -0,0 +1,23 @@
+from random import randint as ri
+
+def run():
+    hidden_number = ri(1, 100)
+
+    while True:
+        try:
+            user_number = int(input("Guess the number: "))
+        except ValueError as err:
+            print(f"Your input: {user_number} is not a real number. Try again")
+            continue
+        
+        if user_number < hidden_number:
+            print("too small")
+        elif user_number > hidden_number:
+            print("too big")
+        else:
+            print("you won")
+            return
+
+
+if __name__ == "__main__":
+    run()
\ No newline at end of file
diff --git a/2] loto/main.py b/2] loto/main.py
index e69de29..15aa860 100644
--- a/2] loto/main.py	
+++ b/2] loto/main.py	
@@ -0,0 +1,48 @@
+from random import choice
+
+def collect_user_picks() -> set[int]:
+    print("Please pick 6 numbers. Each in range between 1-49\n")
+
+    picks = set()
+    count = 1
+    while count != 7:
+        try: 
+            pick = int(input(f"Please pick {count}. number: "))
+            if not (1 <=  pick <= 49):
+                print(f"Number {pick} has to be within 1-49 range, try again")
+                continue
+            if pick in picks:
+                print(f"Number {pick} can be picked only once, try again")
+                continue
+        except ValueError as e:
+            print("This is not a number, try again")
+            continue
+
+        count +=1
+        picks.add(pick)
+
+    return picks
+
+
+def get_winning_numbers() -> set[int]:
+    all_numbers = [i for i in range(1, 50)]
+    winning_numbers = {choice(all_numbers) for _ in range(6)}
+
+    return winning_numbers
+
+
+def run():
+
+    user_picks = collect_user_picks()
+    print(f"User picked: {sorted(user_picks)}")
+
+    winnig_numbers = get_winning_numbers()
+    print(f"Winning numbers are: {winnig_numbers}")
+
+    intersection = user_picks & winnig_numbers
+    print(f"user picked {len(intersection)} numbers that were in winning numbers.")
+
+
+
+if __name__ == "__main__":
+    run()
\ No newline at end of file
diff --git a/3] guessing game 2/binary_search.py b/3] guessing game 2/binary_search.py
new file mode 100644
index 0000000..ffce5b5
--- /dev/null
+++ b/3] guessing game 2/binary_search.py	
@@ -0,0 +1,25 @@
+# this problem is classical application of binary search algorithm but add some more complexity because of the user inputs
+# here is the version without user inputs (user is automated)
+
+from random import randint as ri
+
+def binary_search():
+    low, high = 1, 1000
+    user_number = ri(1, 1000)
+    print(f"I am the user, and I am thinking of the number {user_number}")
+
+    while low <= high:
+        mid = (low + high) >> 1
+        
+        if user_number < mid:
+            print(f"You guessed {mid}, and it is too big")
+            high = mid - 1
+        elif user_number > mid:
+            print(f"You guessed {mid}, and it is too small")
+            low = mid + 1
+        else:
+            print(f"You guessed {mid}, and it is correct!")
+            return mid
+
+if  __name__ == "__main__":
+    binary_search()
diff --git a/3] guessing game 2/main.py b/3] guessing game 2/main.py
index e69de29..bbe5da8 100644
--- a/3] guessing game 2/main.py	
+++ b/3] guessing game 2/main.py	
@@ -0,0 +1,35 @@
+# here is the version with the user inputs as asked in the course
+
+def user_answer() -> str:
+    possible_answers = ["small", "big", "ok"]
+    while True:
+        answer = input()
+        if answer not in possible_answers:
+            print(f"You can answer only one of {possible_answers}")
+            continue
+        else:
+            return answer
+
+
+def run():
+    low, high = 1, 1000
+    print(f"OK, I (the user) am thinking of number between {low} and {high} and you (the computer) must guess it")
+    print("After each guess I will give you answer, if your guess was too small or big\n'\n")
+
+    while low <= high:
+        mid = (low + high) >> 1
+
+        print(f"I (the computer) am guessing {mid}. Is it small or big?")
+
+        answer = user_answer() 
+        if answer == "big":
+            high = mid - 1
+        elif answer == "small":
+            low = mid + 1
+        else:
+            return mid
+                
+if  __name__ == "__main__":
+    run()
+
+
diff --git a/4] guessing game 3/main.py b/4] guessing game 3/main.py
index e69de29..1440e82 100644
--- a/4] guessing game 3/main.py	
+++ b/4] guessing game 3/main.py	
@@ -0,0 +1 @@
+nedelal jsem, je tam moc HTML
diff --git a/5] 2001/main.py b/5] 2001/main.py
deleted file mode 100644
index e69de29..0000000
diff --git a/5] dice/main.py b/5] dice/main.py
index e69de29..2eaaa22 100644
--- a/5] dice/main.py	
+++ b/5] dice/main.py	
@@ -0,0 +1,33 @@
+import re
+from random import randint as ri
+
+def parse(code: str) -> tuple[str]:
+    pattern = re.compile(r'(\d*)D(3|4|6|8|10|12|20|100)([+-]\d+)?')
+    matched = pattern.match(code)
+    
+    if matched:
+        rolls = int(matched.group(1)) if matched.group(1) else 1
+        dice = int(matched.group(2))
+        extras = int(matched.group(3)) if matched.group(3) else 0
+
+        return rolls, dice, extras
+
+    raise ValueError(f"The code {code} is invalid")
+
+
+def simulate(code: str) -> int:
+    try:
+        rolls, dice, extras = parse(code)  
+    except ValueError as ex:
+        raise ValueError(f"The code '{code}' is invalid, simulation cannot continue.") from ex
+
+    result = extras
+    for _ in range(rolls):
+        result += ri(1, dice)
+
+    return result
+
+
+if __name__ == "__main__":
+
+    result = simulate("2D10+10")
diff --git a/6] 2001/main.py b/6] 2001/main.py
new file mode 100644
index 0000000..65e4fc7
--- /dev/null
+++ b/6] 2001/main.py	
@@ -0,0 +1 @@
+nedelal jsem nebyl cas
\ No newline at end of file