diff --git a/app/src/main/res/layout/activity_main_menu.xml b/app/src/main/res/layout/activity_main_menu.xml
index cdf9e59..be2d892 100644
--- a/app/src/main/res/layout/activity_main_menu.xml
+++ b/app/src/main/res/layout/activity_main_menu.xml
@@ -8,223 +8,236 @@
     xmlns:tools="http://schemas.android.com/tools"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
-<androidx.coordinatorlayout.widget.CoordinatorLayout
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:fitsSystemWindows="true"
-    tools:context="tu_darmstadt.sudoku.ui.MainActivity"
-    android:layout_height="match_parent"
-    android:layout_width="match_parent">
-
-    <com.google.android.material.appbar.AppBarLayout
-        android:id="@+id/appbar"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
-
-        <androidx.appcompat.widget.Toolbar
-             android:id="@+id/toolbar"
-             android:layout_width="match_parent"
-             android:layout_height="?attr/actionBarSize"
-             android:background="?attr/colorPrimary"
-             app:popupTheme="@style/AppTheme.PopupOverlay">
-
-        </androidx.appcompat.widget.Toolbar>
-
-
-    </com.google.android.material.appbar.AppBarLayout>
-
-   <LinearLayout
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:fitsSystemWindows="true"
+        tools:context="tu_darmstadt.sudoku.ui.MainActivity"
         android:layout_height="match_parent"
-        android:layout_width="match_parent"
-        android:orientation="vertical"
-        android:weightSum="10"
-        android:id="@+id/main_content"
-        style="?android:buttonBarStyle"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-        <RelativeLayout
-            android:layout_width="fill_parent"
-            android:layout_height="0dp"
-            android:layoutDirection="ltr"
-            android:layout_weight="4">
-
-        <androidx.viewpager.widget.ViewPager
-            android:id="@+id/scroller"
+        android:layout_width="match_parent">
 
+        <com.google.android.material.appbar.AppBarLayout
+            android:id="@+id/appbar"
             android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:theme="@style/AppTheme.AppBarOverlay">
+
+            <androidx.appcompat.widget.Toolbar
+                android:id="@+id/toolbar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                android:background="?attr/colorPrimary"
+                app:popupTheme="@style/AppTheme.PopupOverlay">
+
+            </androidx.appcompat.widget.Toolbar>
+
+
+        </com.google.android.material.appbar.AppBarLayout>
+
+        <LinearLayout
             android:layout_height="match_parent"
-            app:layout_behavior="@string/appbar_scrolling_view_behavior" />
-
-            <ImageView
-                android:id="@+id/arrow_left"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:srcCompat="@drawable/ic_keyboard_arrow_left_black_24dp"
-                android:layout_alignParentLeft="true"
-                android:layout_alignParentStart="true"
-                android:padding="@dimen/activity_horizontal_margin"
-                android:layout_marginStart="@dimen/activity_horizontal_margin"
-                android:layout_marginLeft="@dimen/activity_horizontal_margin"
-                android:layout_centerVertical="true"
-                android:onClick="onClick"/>
-            <ImageView
-                android:id="@+id/arrow_right"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:srcCompat="@drawable/ic_keyboard_arrow_right_black_24dp"
-                android:layout_alignParentRight="true"
-                android:layout_alignParentEnd="true"
-                android:padding="@dimen/activity_horizontal_margin"
-                android:layout_marginEnd="@dimen/activity_horizontal_margin"
-                android:layout_marginRight="@dimen/activity_horizontal_margin"
-                android:layout_centerVertical="true"
-                android:onClick="onClick"/>
-        </RelativeLayout>
-        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-            xmlns:tools="http://schemas.android.com/tools"
             android:layout_width="match_parent"
-            android:layout_height="0px"
-            android:layout_weight="6"
-            android:paddingLeft="@dimen/activity_horizontal_margin"
-            android:paddingRight="@dimen/activity_horizontal_margin"
-            android:paddingTop="@dimen/activity_vertical_margin"
-            android:paddingBottom="@dimen/activity_vertical_margin"
-            tools:context="tu_darmstadt.sudoku.ui.MainActivity"
             android:orientation="vertical"
-            android:weightSum="8"
-            android:divider="#000"
-            android:baselineAligned="false"
-            android:gravity="center_horizontal">
+            android:weightSum="10"
+            android:id="@+id/main_content"
+            style="?android:buttonBarStyle"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
-            <TextView
-                android:id="@+id/difficultyText"
-                android:layout_height="wrap_content"
-                android:layout_width="wrap_content"
-                android:text="@string/difficulty_easy"
-                android:textSize="@dimen/main_text_difficulty"/>
-
-            <RatingBar
-                android:layout_width="wrap_content"
-                android:id="@+id/difficultyBar"
-                android:layout_gravity="center_horizontal"
-                android:clickable="true"
-                android:numStars="3"
-                android:rating="1"
-                android:stepSize="1"
-                style="@style/RatingBar"/>
-
-            <Button
-                android:textColor="?attr/lightestFontColor"
-                android:layout_width="match_parent"
+            <RelativeLayout
+                android:layout_width="fill_parent"
                 android:layout_height="0dp"
-                android:layout_marginLeft="@dimen/main_button_padding"
-                android:layout_marginRight="@dimen/main_button_padding"
-                android:text="@string/new_game"
-                android:textStyle="normal"
-                android:textSize="@dimen/text_size"
-                android:id="@+id/playButton"
-                android:layout_gravity="center_horizontal"
-                android:layout_weight="3"
-                android:onClick="onClick"
-                android:clickable="false"
-                android:elevation="10dp"
-                android:background="@drawable/standalone_button"/>
+                android:layoutDirection="ltr"
+                android:layout_weight="4">
 
-            <Button
-                android:textColor="?attr/lightestFontColor"
-                android:layout_marginTop="20dp"
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_marginLeft="@dimen/main_button_padding"
-                android:layout_marginRight="@dimen/main_button_padding"
-                android:text="@string/menu_continue_game"
-                android:textStyle="normal"
-                android:textSize="@dimen/text_size"
-                android:id="@+id/continueButton"
-                android:layout_gravity="center_horizontal"
-                android:layout_weight="3"
-                android:onClick="onClick"
-                android:capitalize="none"
-                android:clickable="false"
-                android:background="@drawable/standalone_button"/>
+                <androidx.viewpager.widget.ViewPager
+                    android:id="@+id/scroller"
 
-          <!--  <Button
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:text="coachMark"
-                android:visibility="visible"
-                android:onClick="coachMark"/> -->
-<!--
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="2"
-                android:weightSum="2">
-                <Button
-                    android:layout_width="0dp"
+                    android:layout_width="match_parent"
                     android:layout_height="match_parent"
-                    android:layout_marginLeft="30dp"
-                    android:layout_marginRight="1dp"
-                    android:text="@string/menu_highscore"
+                    app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+                <ImageView
+                    android:id="@+id/arrow_left"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:srcCompat="@drawable/ic_keyboard_arrow_left_black_24dp"
+                    android:layout_alignParentLeft="true"
+                    android:layout_alignParentStart="true"
+                    android:padding="@dimen/activity_horizontal_margin"
+                    android:layout_marginStart="@dimen/activity_horizontal_margin"
+                    android:layout_marginLeft="@dimen/activity_horizontal_margin"
+                    android:layout_centerVertical="true"
+                    android:onClick="onClick"/>
+                <ImageView
+                    android:id="@+id/arrow_right"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:srcCompat="@drawable/ic_keyboard_arrow_right_black_24dp"
+                    android:layout_alignParentRight="true"
+                    android:layout_alignParentEnd="true"
+                    android:padding="@dimen/activity_horizontal_margin"
+                    android:layout_marginEnd="@dimen/activity_horizontal_margin"
+                    android:layout_marginRight="@dimen/activity_horizontal_margin"
+                    android:layout_centerVertical="true"
+                    android:onClick="onClick"/>
+            </RelativeLayout>
+            <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:tools="http://schemas.android.com/tools"
+                android:layout_width="match_parent"
+                android:layout_height="0px"
+                android:layout_weight="6"
+                android:paddingLeft="@dimen/activity_horizontal_margin"
+                android:paddingRight="@dimen/activity_horizontal_margin"
+                android:paddingTop="@dimen/activity_vertical_margin"
+                android:paddingBottom="@dimen/activity_vertical_margin"
+                tools:context="tu_darmstadt.sudoku.ui.MainActivity"
+                android:orientation="vertical"
+                android:weightSum="8"
+                android:divider="#000"
+                android:baselineAligned="false"
+                android:gravity="center_horizontal">
+
+                <TextView
+                    android:id="@+id/difficultyText"
+                    android:layout_height="wrap_content"
+                    android:layout_width="wrap_content"
+                    android:text="@string/difficulty_easy"
+                    android:textSize="@dimen/main_text_difficulty"/>
+
+                <LinearLayout
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:gravity="center_vertical"
+                    android:orientation="horizontal">
+
+                    <CheckBox
+                        android:id="@+id/circleButton"
+                        android:layout_width="35dp"
+                        android:layout_height="35dp"
+                        android:button="@drawable/create_game_src" />
+
+                    <RatingBar
+                        android:id="@+id/difficultyBar"
+                        style="@style/RatingBar"
+                        android:layout_width="wrap_content"
+                        android:layout_gravity="center_horizontal"
+                        android:clickable="true"
+                        android:numStars="3"
+                        android:rating="0.5"
+                        android:stepSize="1" />
+                </LinearLayout>
+
+                <Button
+                    android:textColor="?attr/lightestFontColor"
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
+                    android:layout_marginLeft="@dimen/main_button_padding"
+                    android:layout_marginRight="@dimen/main_button_padding"
+                    android:text="@string/new_game"
                     android:textStyle="normal"
-                    android:id="@+id/highscoreButton"
+                    android:textSize="@dimen/text_size"
+                    android:id="@+id/playButton"
                     android:layout_gravity="center_horizontal"
-                    android:layout_weight="1"
+                    android:layout_weight="3"
+                    android:onClick="onClick"
+                    android:clickable="false"
+                    android:elevation="10dp"
+                    android:background="@drawable/standalone_button"/>
+
+                <Button
+                    android:textColor="?attr/lightestFontColor"
+                    android:layout_marginTop="20dp"
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
+                    android:layout_marginLeft="@dimen/main_button_padding"
+                    android:layout_marginRight="@dimen/main_button_padding"
+                    android:text="@string/menu_continue_game"
+                    android:textStyle="normal"
+                    android:textSize="@dimen/text_size"
+                    android:id="@+id/continueButton"
+                    android:layout_gravity="center_horizontal"
+                    android:layout_weight="3"
                     android:onClick="onClick"
                     android:capitalize="none"
-                    android:clickable="false"/>
-                <Button
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_marginLeft="1dp"
-                    android:layout_marginRight="30dp"
-                    android:text="@string/menu_settings"
-                    android:textStyle="normal"
-                    android:id="@+id/settingsButton"
-                    android:layout_gravity="center_horizontal"
-                    android:layout_weight="1"
-                    android:onClick="onClick"
-                    android:capitalize="none"
-                    android:clickable="false"/>
+                    android:clickable="false"
+                    android:background="@drawable/standalone_button"/>
+
+                <!--  <Button
+                      android:layout_width="wrap_content"
+                      android:layout_height="wrap_content"
+                      android:text="coachMark"
+                      android:visibility="visible"
+                      android:onClick="coachMark"/> -->
+                <!--
+                            <LinearLayout
+                                android:layout_width="match_parent"
+                                android:layout_height="0dp"
+                                android:layout_weight="2"
+                                android:weightSum="2">
+                                <Button
+                                    android:layout_width="0dp"
+                                    android:layout_height="match_parent"
+                                    android:layout_marginLeft="30dp"
+                                    android:layout_marginRight="1dp"
+                                    android:text="@string/menu_highscore"
+                                    android:textStyle="normal"
+                                    android:id="@+id/highscoreButton"
+                                    android:layout_gravity="center_horizontal"
+                                    android:layout_weight="1"
+                                    android:onClick="onClick"
+                                    android:capitalize="none"
+                                    android:clickable="false"/>
+                                <Button
+                                    android:layout_width="0dp"
+                                    android:layout_height="match_parent"
+                                    android:layout_marginLeft="1dp"
+                                    android:layout_marginRight="30dp"
+                                    android:text="@string/menu_settings"
+                                    android:textStyle="normal"
+                                    android:id="@+id/settingsButton"
+                                    android:layout_gravity="center_horizontal"
+                                    android:layout_weight="1"
+                                    android:onClick="onClick"
+                                    android:capitalize="none"
+                                    android:clickable="false"/>
+                            </LinearLayout>
+                            <LinearLayout
+                                android:layout_width="match_parent"
+                                android:layout_height="0dp"
+                                android:layout_weight="2"
+                                android:weightSum="2">
+                                <Button
+                                    android:layout_width="0dp"
+                                    android:layout_height="match_parent"
+                                    android:layout_marginLeft="30dp"
+                                    android:layout_marginRight="1dp"
+                                    android:text="@string/menu_about"
+                                    android:textStyle="normal"
+                                    android:id="@+id/aboutButton"
+                                    android:layout_gravity="center_horizontal"
+                                    android:layout_weight="1"
+                                    android:onClick="onClick"
+                                    android:capitalize="none"
+                                    android:clickable="false"/>
+                                <Button
+                                    android:layout_width="0dp"
+                                    android:layout_height="match_parent"
+                                    android:layout_marginLeft="1dp"
+                                    android:layout_marginRight="30dp"
+                                    android:text="@string/menu_help"
+                                    android:textStyle="normal"
+                                    android:id="@+id/helpButton"
+                                    android:layout_gravity="center_horizontal"
+                                    android:layout_weight="1"
+                                    android:onClick="onClick"
+                                    android:capitalize="none"
+                                    android:clickable="false"/>
+                            </LinearLayout>
+                -->
             </LinearLayout>
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="2"
-                android:weightSum="2">
-                <Button
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_marginLeft="30dp"
-                    android:layout_marginRight="1dp"
-                    android:text="@string/menu_about"
-                    android:textStyle="normal"
-                    android:id="@+id/aboutButton"
-                    android:layout_gravity="center_horizontal"
-                    android:layout_weight="1"
-                    android:onClick="onClick"
-                    android:capitalize="none"
-                    android:clickable="false"/>
-                <Button
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_marginLeft="1dp"
-                    android:layout_marginRight="30dp"
-                    android:text="@string/menu_help"
-                    android:textStyle="normal"
-                    android:id="@+id/helpButton"
-                    android:layout_gravity="center_horizontal"
-                    android:layout_weight="1"
-                    android:onClick="onClick"
-                    android:capitalize="none"
-                    android:clickable="false"/>
-            </LinearLayout>
--->
+
         </LinearLayout>
 
-   </LinearLayout>
-
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
 
     <com.google.android.material.navigation.NavigationView
         android:id="@+id/nav_view_main"