diff --git a/.idea/modules.xml b/.idea/modules.xml
index 7bcd847..3a3eea2 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -2,8 +2,8 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
-      <module fileurl="file://$PROJECT_DIR$/Sudoku.iml" filepath="$PROJECT_DIR$/Sudoku.iml" />
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
+      <module fileurl="file://$PROJECT_DIR$/privacy-friendly-sudoku.iml" filepath="$PROJECT_DIR$/privacy-friendly-sudoku.iml" />
     </modules>
   </component>
 </project>
\ No newline at end of file
diff --git a/app/app.iml b/app/app.iml
index 75b2ddb..f33ee01 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id=":app" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$/.." external.system.id="GRADLE" external.system.module.group="Sudoku" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
+<module external.linked.project.id=":app" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$/.." external.system.id="GRADLE" external.system.module.group="privacy-friendly-sudoku" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="android-gradle" name="Android-Gradle">
       <configuration>
@@ -97,16 +97,5 @@
     <orderEntry type="library" exported="" name="design-23.1.0" level="project" />
     <orderEntry type="library" exported="" name="appcompat-v7-23.1.0" level="project" />
     <orderEntry type="library" exported="" name="support-annotations-23.1.0" level="project" />
-    <orderEntry type="module-library">
-      <library name="JUnit4">
-        <CLASSES>
-          <root url="jar://$APPLICATION_HOME_DIR$/lib/junit-4.11.jar!/" />
-          <root url="jar://$APPLICATION_HOME_DIR$/lib/hamcrest-core-1.3.jar!/" />
-          <root url="jar://$APPLICATION_HOME_DIR$/lib/hamcrest-library-1.3.jar!/" />
-        </CLASSES>
-        <JAVADOC />
-        <SOURCES />
-      </library>
-    </orderEntry>
   </component>
 </module>
\ No newline at end of file
diff --git a/app/src/main/java/tu_darmstadt/sudoku/controller/GameController.java b/app/src/main/java/tu_darmstadt/sudoku/controller/GameController.java
index 8aea071..b042be9 100644
--- a/app/src/main/java/tu_darmstadt/sudoku/controller/GameController.java
+++ b/app/src/main/java/tu_darmstadt/sudoku/controller/GameController.java
@@ -51,7 +51,7 @@ public class GameController {
 
     public boolean isSolved() {
         boolean solved = true;
-
+        /*
         for(int i = 0; i < size; i++) {
 
             List<Integer> set = new ArrayList<Integer>();
@@ -66,7 +66,7 @@ public class GameController {
             if(!checkList() solved = false;
             if(!checkList(gameField.getColumn(i))) solved = false;
             if(!checkList(gameField.getSection(i))) solved = false;
-        }
+        }*/
         return solved;
     }
 
@@ -76,13 +76,13 @@ public class GameController {
      * @return true if every cell has a value and every value occurs only once
      */
     private boolean checkList(GameCell[] list) {
-        List<Integer> set = new ArrayList<Integer>();
+        /*List<Integer> set = new ArrayList<Integer>();
         for(GameCell c : list) {
             if(set.contains(c.getValue())) {
 
                 errorList.add(new CheckError());
             }
-        }
+        }*/
         return false;
     }
 
diff --git a/Sudoku.iml b/privacy-friendly-sudoku.iml
similarity index 70%
rename from Sudoku.iml
rename to privacy-friendly-sudoku.iml
index 95bbf83..fffb1a7 100644
--- a/Sudoku.iml
+++ b/privacy-friendly-sudoku.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="Sudoku" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" external.system.module.group="" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="privacy-friendly-sudoku" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" external.system.module.group="" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="java-gradle" name="Java-Gradle">
       <configuration>