diff --git a/quartett.py b/quartett.py
index ab44225..dc3dc36 100644
--- a/quartett.py
+++ b/quartett.py
@@ -1,5 +1,9 @@
 """main module"""
 
+__author__ = ""
+__credits__ = ""
+__email__ = ""
+
 import random
 import clean_input
 
@@ -12,43 +16,43 @@ def central_function():
     active = 0  # contains index of the active player
 
     card_stack, players_with_cards, players = initialize()
-
-    ..., players_with_cards, players = initialize()[0], initialize()[1], initialize()[2]
     while deckP1 and deckP2 and deckP3 not empty:
-        round(..., players_with_cards, players)
+        round(card_stack, players_with_cards, players, active)
         # TO DO implement active_player rotation
 
 
-def round(..., players_with_cards, players):
+def round(card_stack, players_with_cards, players,active):
     '''structures one round in the game'''
 
     while player_request in deck_of_player:
-        choose(..., players_with_cards, players)
+        choose(card_stack, players_with_cards, players,active)
 
 
-def choose(..., players_with_cards, players):
+def choose(card_stack, players_with_cards, players,active):
     """active player chooses another player from whom to steal a card"""
 
-    players_without_active = players.pop(active_player)
+    players_without_active = players.pop(active)
     print('Folgende Spieler stehen zur Verfügung:')
     print(players_without_active)
     # needs clean.io, chosen_player enthält den index in der players liste
     chosen_player = players.index(input(
-        'Welchen Spieler möchtest du befragen?'))
-    player_request = input('Welche Karte möchtest du haben?')  # TODO: needs clean.io dict magic
+        'Welchen Spieler möchtest du befragen?')) # TODO needs clean io
+    player_request = input('Welche Karte möchtest du haben?')
 
     if player_request in players_with_cards[chosen_player]['cards_on_hand']:
-        steal(P1, P2)
+        steal(active, chosen_player)
     else:
-        # end of round
-        if stack == exists:
-            # TODO: player.values + card_from_stack
+        # TODO end of round
+        # except if stack is not empty, which is only the case with two players
+        if card_stack == True:
+            # last card from the stack gets added to active player's hand
+            players_with_cards[active]['cards_on_hand'].append(card_stack.pop())
             break
 
 
 def steal(P1, P2):
     """defines how the active players steals cards from chosen player """
-    # TODO: write steal function
+    players_with_cards[active].['cards_on_hand'].append(players_with_cards[chosen_player]['cards_on_hand'].pop(player_request))
 
 def initialize():
     """
@@ -63,7 +67,7 @@ def initialize():
     x = 0
     for i in range(4):
         for l in "abcdefgh":
-            d = {"id": x, "number": i, "letter": l}
+            d = {"id": str(x), "number": str(i), "letter": l}
             card_stack.append(d)
             x += 1