diff --git a/TOOLS/TOOLS.iml b/TOOLS/TOOLS.iml
index e2b0bb6..1a19db0 100644
--- a/TOOLS/TOOLS.iml
+++ b/TOOLS/TOOLS.iml
@@ -7,6 +7,7 @@
       <sourceFolder url="file://$MODULE_DIR$/fileReader" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/fileWriter" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/time" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/dataStructure" isTestSource="false" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
diff --git a/TicTacToe - MinMax/src/BinaryTree.java b/TOOLS/dataStructure/BinaryTree.java
similarity index 100%
rename from TicTacToe - MinMax/src/BinaryTree.java
rename to TOOLS/dataStructure/BinaryTree.java
diff --git a/TicTacToe - MinMax/TicTacToe - MinMax.iml b/TicTacToe - MinMax/TicTacToe - MinMax.iml
index c90834f..64f7451 100644
--- a/TicTacToe - MinMax/TicTacToe - MinMax.iml	
+++ b/TicTacToe - MinMax/TicTacToe - MinMax.iml	
@@ -7,5 +7,6 @@
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module" module-name="TOOLS" exported="" />
   </component>
 </module>
\ No newline at end of file
diff --git a/TicTacToe - MinMax/src/Board.java b/TicTacToe - MinMax/src/Board.java
index fa653a3..694f605 100644
--- a/TicTacToe - MinMax/src/Board.java	
+++ b/TicTacToe - MinMax/src/Board.java	
@@ -132,7 +132,7 @@ public class Board extends JPanel implements ActionListener {
                     }
                 }
                 //check if computer needs to take a turn
-                if (game.isTurnTaken() && game.emptyTiles() != 0){
+                if (game.isTurnTaken()){
                     game.setTurnTaken(false);
                     game.computersTurn();
                 }
diff --git a/TicTacToe - MinMax/src/Game.java b/TicTacToe - MinMax/src/Game.java
index a04b183..842a541 100644
--- a/TicTacToe - MinMax/src/Game.java	
+++ b/TicTacToe - MinMax/src/Game.java	
@@ -70,7 +70,7 @@ public class Game {
         }
         return false;
     }
-
+    
     public int emptyTiles(){
         int n = 9;
         for (int i = 0; i < playfield.length; i++){
@@ -78,6 +78,7 @@ public class Game {
                 n -= 1;
             }
         }
+        System.out.println(n);
         return n;
     }
 
diff --git a/out/production/TOOLS/BinaryTree$Node.class b/out/production/TOOLS/BinaryTree$Node.class
new file mode 100644
index 0000000..2ae747f
Binary files /dev/null and b/out/production/TOOLS/BinaryTree$Node.class differ
diff --git a/out/production/TOOLS/BinaryTree.class b/out/production/TOOLS/BinaryTree.class
new file mode 100644
index 0000000..949ff80
Binary files /dev/null and b/out/production/TOOLS/BinaryTree.class differ
diff --git a/out/production/TOOLS/reader/NumberReader.class b/out/production/TOOLS/reader/NumberReader.class
index 73f2d1f..112c973 100644
Binary files a/out/production/TOOLS/reader/NumberReader.class and b/out/production/TOOLS/reader/NumberReader.class differ
diff --git a/out/production/TOOLS/reader/ReaderRakete.class b/out/production/TOOLS/reader/ReaderRakete.class
index 10f0f98..3e771fb 100644
Binary files a/out/production/TOOLS/reader/ReaderRakete.class and b/out/production/TOOLS/reader/ReaderRakete.class differ
diff --git a/out/production/TOOLS/reader/ReaderRotkaeppchen.class b/out/production/TOOLS/reader/ReaderRotkaeppchen.class
index 48343c5..ccb0912 100644
Binary files a/out/production/TOOLS/reader/ReaderRotkaeppchen.class and b/out/production/TOOLS/reader/ReaderRotkaeppchen.class differ
diff --git a/out/production/TOOLS/util/Timer.class b/out/production/TOOLS/util/Timer.class
index 23c94bd..8b48563 100644
Binary files a/out/production/TOOLS/util/Timer.class and b/out/production/TOOLS/util/Timer.class differ
diff --git a/out/production/TOOLS/writer/Writer.class b/out/production/TOOLS/writer/Writer.class
index 675858c..f71b065 100644
Binary files a/out/production/TOOLS/writer/Writer.class and b/out/production/TOOLS/writer/Writer.class differ
diff --git a/out/production/TicTacToe - MinMax/Board$2.class b/out/production/TicTacToe - MinMax/Board$2.class
index e9c1296..866bc55 100644
Binary files a/out/production/TicTacToe - MinMax/Board$2.class and b/out/production/TicTacToe - MinMax/Board$2.class differ
diff --git a/out/production/TicTacToe - MinMax/Game.class b/out/production/TicTacToe - MinMax/Game.class
index a1cb491..2ffd5c6 100644
Binary files a/out/production/TicTacToe - MinMax/Game.class and b/out/production/TicTacToe - MinMax/Game.class differ
diff --git a/out/production/TicTacToe - MinMax/META-INF/TicTacToe - MinMax.kotlin_module b/out/production/TicTacToe - MinMax/META-INF/TicTacToe - MinMax.kotlin_module
new file mode 100644
index 0000000..a49347a
Binary files /dev/null and b/out/production/TicTacToe - MinMax/META-INF/TicTacToe - MinMax.kotlin_module differ
diff --git a/out/production/TicTacToe - MinMax/Minmax.class b/out/production/TicTacToe - MinMax/Minmax.class
new file mode 100644
index 0000000..d6d4981
Binary files /dev/null and b/out/production/TicTacToe - MinMax/Minmax.class differ
diff --git a/out/production/TicTacToe - MinMax/Test.class b/out/production/TicTacToe - MinMax/Test.class
new file mode 100644
index 0000000..22a1c24
Binary files /dev/null and b/out/production/TicTacToe - MinMax/Test.class differ
diff --git a/out/production/TicTacToe - MinMax/minmax_pseudo.txt b/out/production/TicTacToe - MinMax/minmax_pseudo.txt
new file mode 100644
index 0000000..f2ec103
--- /dev/null
+++ b/out/production/TicTacToe - MinMax/minmax_pseudo.txt	
@@ -0,0 +1,9 @@
+Variables:
+player, board, search_depth
+
+Data_structure:
+BinaryTree
+
+Loops:
+recursion
+    for-loop