diff --git a/app/src/main/res/layout/activity_daily_sudoku.xml b/app/src/main/res/layout/activity_daily_sudoku.xml
index 16983d5..18bfd7d 100644
--- a/app/src/main/res/layout/activity_daily_sudoku.xml
+++ b/app/src/main/res/layout/activity_daily_sudoku.xml
@@ -1,417 +1,525 @@
 <?xml version="1.0" encoding="utf-8"?>
 
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/linearLayout5"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    app:statusBarBackground="?attr/colorPrimary"
     android:fitsSystemWindows="true"
-    android:orientation="vertical">
+    app:statusBarBackground="?attr/colorPrimary">
 
-    <com.google.android.material.appbar.AppBarLayout
-        android:id="@+id/appbar"
-        android:layout_width="match_parent"
+    <LinearLayout
+        android:id="@+id/linearLayout6"
+        android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:clipChildren="false"
-        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"
-            android:clipChildren="false"
-            app:layout_scrollFlags="enterAlways">
-
-        </androidx.appcompat.widget.Toolbar>
-
-    </com.google.android.material.appbar.AppBarLayout>
-
-
-
-<LinearLayout
-    android:layout_width="match_parent"
-        android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
-        android:paddingRight="@dimen/activity_horizontal_margin"
-        android:paddingTop="@dimen/activity_vertical_margin"
-        android:paddingBottom="@dimen/activity_vertical_margin"
-        android:weightSum="10"
         android:orientation="vertical"
-        tools:context="org.secuso.privacyfriendlysudoku.ui.StatsActivity$PlaceholderFragment">
+        app:layout_constraintBottom_toTopOf="@+id/main_content"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <com.google.android.material.appbar.AppBarLayout
+            android:id="@+id/appbar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:clipChildren="false"
+            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"
+                android:clipChildren="false"
+                app:layout_scrollFlags="enterAlways"
+                app:popupTheme="@style/AppTheme.PopupOverlay">
+
+            </androidx.appcompat.widget.Toolbar>
+
+        </com.google.android.material.appbar.AppBarLayout>
 
         <LinearLayout
-            android:layout_width="fill_parent"
-            android:layout_height="0dp"
-            android:layout_weight="4"
-            android:weightSum="5">
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            android:paddingLeft="@dimen/activity_horizontal_margin"
+            android:paddingTop="@dimen/activity_vertical_margin"
+            android:paddingRight="@dimen/activity_horizontal_margin"
+            android:paddingBottom="@dimen/activity_vertical_margin"
+            android:weightSum="10"
+            tools:context="org.secuso.privacyfriendlysudoku.ui.StatsActivity$PlaceholderFragment">
 
-            <ImageView
-                android:id="@+id/statistic_image"
-                android:layout_width="0dp"
-                android:layout_height="fill_parent"
-                android:layout_gravity="center"
-                android:layout_weight="1.8"
-                android:adjustViewBounds="true"
-                android:src="@drawable/icon_default_9x9" />
-            <RelativeLayout
-                android:layout_width="0dp"
-                android:layout_height="match_parent"
-                android:layout_weight="1">
-                <View
-                    android:layout_width="2dp"
+            <LinearLayout
+                android:layout_width="fill_parent"
+                android:layout_height="0dp"
+                android:layout_weight="4"
+                android:weightSum="5">
+
+                <LinearLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="2.0"
+                    android:orientation="vertical">
+
+                    <ImageView
+                        android:id="@+id/statistic_image"
+                        android:layout_width="match_parent"
+                        android:layout_height="fill_parent"
+                        android:layout_gravity="center|start|center_horizontal|left"
+                        android:layout_weight="2.0"
+                        android:adjustViewBounds="true"
+                        android:src="@drawable/icon_default_9x9" />
+
+                    <RelativeLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="3.0"
+                        android:gravity="center_horizontal">
+
+                        <RatingBar
+                            android:id="@+id/first_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_diff_text"
+                            android:layout_gravity="start|right|center_horizontal"
+                            android:numStars="4"
+                            android:rating="2" />
+
+                        <TextView
+                            android:id="@+id/first_diff_text"
+                            android:layout_width="42dp"
+                            android:layout_height="30dp"
+                            android:gravity="bottom|center|center_horizontal"
+                            android:text="diffi"
+                            android:textSize="22dp" />
+                    </RelativeLayout>
+
+                </LinearLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
                     android:layout_height="match_parent"
-                    android:layout_gravity="center_vertical"
-                    android:foregroundGravity="center_vertical"
-                    android:layout_centerVertical="true"
+                    android:layout_weight="1">
+
+                    <View
+                        android:layout_width="2dp"
+                        android:layout_height="match_parent"
+                        android:layout_centerHorizontal="true"
+                        android:layout_centerVertical="true"
+                        android:layout_gravity="center_vertical"
+                        android:layout_marginTop="@dimen/activity_horizontal_margin"
+                        android:layout_marginBottom="@dimen/activity_horizontal_margin"
+                        android:background="@color/colorPrimary"
+                        android:foregroundGravity="center_vertical" />
+
+                </RelativeLayout>
+
+                <LinearLayout
+                    android:layout_width="2dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="2"
+                    android:orientation="vertical"
+                    android:paddingTop="@dimen/activity_horizontal_margin"
+                    android:weightSum="6">
+
+                    <LinearLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:layout_weight="1.0"
+                        android:orientation="vertical"
+                        android:paddingTop="@dimen/activity_horizontal_margin"
+                        android:weightSum="6">
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_marginBottom="0dp"
+                            android:layout_weight="1"
+                            android:text="@string/number_of_hints" />
+
+                        <TextView
+                            android:id="@+id/numb_of_hints"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_marginBottom="0dp"
+                            android:layout_weight="1"
+                            android:text="0" />
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_weight="1"
+                            android:text="@string/number_of_games" />
+
+                        <TextView
+                            android:id="@+id/numb_of_total_games"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_weight="1"
+                            android:text="0" />
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_weight="1"
+                            android:text="@string/total_of_time" />
+
+                        <TextView
+                            android:id="@+id/numb_of_total_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_weight="1"
+                            android:text="0" />
+                    </LinearLayout>
+
+                    <LinearLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="300dp"
+                        android:orientation="vertical"
+                        android:paddingTop="@dimen/activity_horizontal_margin"
+                        android:weightSum="6">
+
+                    </LinearLayout>
+
+
+                </LinearLayout>
+            </LinearLayout>
+
+
+            <LinearLayout
+                android:layout_width="fill_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1.0">
+
+                <View
+                    android:layout_width="match_parent"
+                    android:layout_height="2dp"
                     android:layout_centerHorizontal="true"
+                    android:layout_centerVertical="true"
+                    android:layout_gravity="center_vertical"
                     android:background="@color/colorPrimary"
-                    android:layout_marginTop="@dimen/activity_horizontal_margin"
-                    android:layout_marginBottom="@dimen/activity_horizontal_margin"/>
+                    android:foregroundGravity="center_vertical" />
+
+            </LinearLayout>
 
-            </RelativeLayout>
             <LinearLayout
-                android:layout_width="0dp"
-                android:layout_height="fill_parent"
-                android:weightSum="6"
-                android:layout_weight="2"
+                android:layout_width="fill_parent"
+                android:layout_height="0dp"
+                android:layout_weight="4"
                 android:orientation="vertical"
-                android:paddingTop="@dimen/activity_horizontal_margin">
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="@string/number_of_hints"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="0"
-                    android:id="@+id/numb_of_hints"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="@string/number_of_games"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="0"
-                    android:id="@+id/numb_of_total_games"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="@string/total_of_time"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="0"
-                    android:id="@+id/numb_of_total_time"
-                    android:layout_weight="1"/>
-            </LinearLayout>
-        </LinearLayout>
-
-
-        <LinearLayout
-            android:layout_width="fill_parent"
-            android:layout_height="0dp"
-            android:layout_weight="1">
-            <View
-                android:layout_width="match_parent"
-                android:layout_height="2dp"
-                android:layout_gravity="center_vertical"
-                android:foregroundGravity="center_vertical"
-                android:layout_centerVertical="true"
-                android:layout_centerHorizontal="true"
-                android:background="@color/colorPrimary" />
-
-        </LinearLayout>
-
-        <LinearLayout
-            android:layout_width="fill_parent"
-            android:layout_height="0dp"
-            android:layout_weight="4"
-            android:weightSum="4"
-            android:orientation="vertical">
-            <!-- ### first row -->
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1"
-                android:weightSum="3">
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_marginTop="10dp"
-                    android:layout_weight="0.7"
-                    android:gravity="center_vertical">
-
-                    <ImageView
-                        android:id="@+id/statistic_image2"
-                        android:layout_width="180dp"
-                        android:layout_height="fill_parent"
-                        android:layout_gravity="center"
-                        android:layout_weight="2"
-                        android:adjustViewBounds="true"
-                        android:src="@drawable/icon_default_9x9" />
-                </RelativeLayout>
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
+                android:weightSum="4">
+                <!-- ### first row -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
                     android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <RatingBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:numStars="3"
-                        android:layout_gravity="center"
-                        android:id="@+id/first_diff_bar"
-                        android:layout_below="@+id/first_diff_text"
-                        style="?android:attr/ratingBarStyleSmall"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="diffi"
-                        android:id="@+id/first_diff_text"
-                        android:gravity="center_vertical"/>
-                </RelativeLayout>
+                    android:weightSum="3">
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/min_time"
-                        android:id="@+id/first_min_text"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="0"
-                        android:id="@+id/first_min_time"
-                        android:gravity="center_vertical"
-                        android:layout_below="@+id/first_min_text"/>
-                </RelativeLayout>
-
-            </LinearLayout>
-            <!-- ### second row -->
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1"
-                android:weightSum="3">
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="0.7"
-                    android:gravity="center_vertical">
-
-                    <ImageView
-                        android:id="@+id/statistic_image6"
-                        android:layout_width="180dp"
+                    <RelativeLayout
+                        android:layout_width="0dp"
                         android:layout_height="fill_parent"
-                        android:layout_gravity="center"
                         android:layout_marginTop="10dp"
                         android:layout_weight="0.7"
-                        android:adjustViewBounds="true"
-                        android:src="@drawable/icon_default_9x9" />
-                </RelativeLayout>
+                        android:gravity="center_vertical">
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <RatingBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:numStars="3"
-                        android:layout_gravity="center"
-                        android:id="@+id/second_diff_bar"
-                        android:layout_below="@+id/second_diff_text"
-                        style="?android:attr/ratingBarStyleSmall"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="diffi"
-                        android:id="@+id/second_diff_text"
-                        android:gravity="center_vertical"/>
-                </RelativeLayout>
+                        <ImageView
+                            android:id="@+id/statistic_image2"
+                            android:layout_width="180dp"
+                            android:layout_height="fill_parent"
+                            android:layout_gravity="center"
+                            android:adjustViewBounds="true"
+                            android:src="@drawable/icon_default_9x9" />
+                    </RelativeLayout>
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/min_time"
-                        android:id="@+id/second_min_text"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="0"
-                        android:id="@+id/second_min_time"
-                        android:gravity="center_vertical"
-                        android:layout_below="@+id/second_min_text"/>
-                </RelativeLayout>
-            </LinearLayout>
-
-
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1">
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="0.7"
-                    android:gravity="center_vertical">
-
-                    <ImageView
-                        android:id="@+id/statistic_image7"
-                        android:layout_width="180dp"
+                    <RelativeLayout
+                        android:layout_width="0dp"
                         android:layout_height="fill_parent"
-                        android:layout_gravity="center"
-                        android:layout_marginTop="10dp"
-                        android:adjustViewBounds="true"
-                        android:src="@drawable/icon_default_9x9" />
-                </RelativeLayout>
+                        android:layout_weight="1"
+                        android:gravity="center_vertical">
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <RatingBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:numStars="3"
-                        android:layout_gravity="center"
-                        android:id="@+id/third_diff_bar"
-                        android:layout_below="@+id/third_diff_text"
-                        style="?android:attr/ratingBarStyleSmall"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="diffi"
-                        android:id="@+id/third_diff_text"
-                        android:gravity="center_vertical"/>
-                </RelativeLayout>
+                        <RatingBar
+                            android:id="@+id/first_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_diff_text"
+                            android:layout_centerHorizontal="false"
+                            android:numStars="4" />
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/min_time"
-                        android:id="@+id/third_min_text"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="0"
-                        android:id="@+id/third_min_time"
-                        android:gravity="center_vertical"
-                        android:layout_below="@+id/third_min_text"/>
-                </RelativeLayout>
+                        <TextView
+                            android:id="@+id/first_diff_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:text="diffi" />
+                    </RelativeLayout>
 
-            </LinearLayout>
-
-
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1">
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="0.7"
-                    android:gravity="center_vertical">
-
-                    <ImageView
-                        android:id="@+id/statistic_image8"
-                        android:layout_width="180dp"
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_marginLeft="1dp"
+                        android:layout_weight="1"
+                        android:gravity="right|center_vertical">
+
+                        <TextView
+                            android:id="@+id/first_min_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/min_time" />
+
+                        <TextView
+                            android:id="@+id/first_min_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_min_text"
+                            android:gravity="center_vertical"
+                            android:text="0" />
+                    </RelativeLayout>
+
+                </LinearLayout>
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
+                    android:layout_weight="1"
+                    android:weightSum="3">
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
                         android:layout_height="fill_parent"
-                        android:layout_gravity="center"
                         android:layout_marginTop="10dp"
                         android:layout_weight="0.7"
-                        android:adjustViewBounds="true"
-                        android:src="@drawable/icon_default_9x9" />
-                </RelativeLayout>
+                        android:gravity="center_vertical">
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <RatingBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:numStars="3"
-                        android:layout_gravity="center"
-                        android:id="@+id/fourth_diff_bar"
-                        android:layout_below="@+id/fourth_diff_text"
-                        style="?android:attr/ratingBarStyleSmall"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="diffi"
-                        android:id="@+id/fourth_diff_text"
-                        android:gravity="center_vertical"/>
-                </RelativeLayout>
+                        <ImageView
+                            android:id="@+id/statistic_image2"
+                            android:layout_width="180dp"
+                            android:layout_height="fill_parent"
+                            android:layout_gravity="center"
+                            android:adjustViewBounds="true"
+                            android:src="@drawable/icon_default_9x9" />
+                    </RelativeLayout>
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="center_vertical">
+
+                        <RatingBar
+                            android:id="@+id/first_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_diff_text"
+                            android:layout_gravity="center"
+                            android:numStars="4" />
+
+                        <TextView
+                            android:id="@+id/first_diff_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:text="diffi" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="right|center_vertical">
+
+                        <TextView
+                            android:id="@+id/first_min_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/min_time" />
+
+                        <TextView
+                            android:id="@+id/first_min_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_min_text"
+                            android:gravity="center_vertical"
+                            android:text="0" />
+                    </RelativeLayout>
+
+                </LinearLayout>
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
                     android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/min_time"
-                        android:id="@+id/fourth_min_text"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="0"
-                        android:id="@+id/fourth_min_time"
-                        android:gravity="center_vertical"
-                        android:layout_below="@+id/fourth_min_text"/>
-                </RelativeLayout>
+                    android:weightSum="3">
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_marginTop="10dp"
+                        android:layout_weight="0.7"
+                        android:gravity="center_vertical">
+
+                        <ImageView
+                            android:id="@+id/statistic_image2"
+                            android:layout_width="180dp"
+                            android:layout_height="fill_parent"
+                            android:layout_gravity="center"
+                            android:adjustViewBounds="true"
+                            android:src="@drawable/icon_default_9x9" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="center_vertical">
+
+                        <RatingBar
+                            android:id="@+id/first_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_diff_text"
+                            android:layout_gravity="center"
+                            android:numStars="4" />
+
+                        <TextView
+                            android:id="@+id/first_diff_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:text="diffi" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="right|center_vertical">
+
+                        <TextView
+                            android:id="@+id/first_min_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/min_time" />
+
+                        <TextView
+                            android:id="@+id/first_min_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_min_text"
+                            android:gravity="center_vertical"
+                            android:text="0" />
+                    </RelativeLayout>
+
+                </LinearLayout>
+                <!-- ### second row -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
+                    android:layout_weight="1"
+                    android:weightSum="3">
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="0.7"
+                        android:gravity="center_vertical">
+
+                        <ImageView
+                            android:id="@+id/statistic_image6"
+                            android:layout_width="180dp"
+                            android:layout_height="fill_parent"
+                            android:layout_gravity="center"
+                            android:layout_marginTop="10dp"
+                            android:layout_weight="0.7"
+                            android:adjustViewBounds="true"
+                            android:src="@drawable/icon_default_9x9" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="center_vertical">
+
+                        <RatingBar
+                            android:id="@+id/second_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/second_diff_text"
+                            android:layout_gravity="center"
+                            android:numStars="4" />
+
+                        <TextView
+                            android:id="@+id/second_diff_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:text="diffi" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="right|center_vertical">
+
+                        <TextView
+                            android:id="@+id/second_min_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/min_time" />
+
+                        <TextView
+                            android:id="@+id/second_min_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/second_min_text"
+                            android:gravity="center_vertical"
+                            android:text="0" />
+                    </RelativeLayout>
+                </LinearLayout>
+
 
             </LinearLayout>
 
-        </LinearLayout>
 
+        </LinearLayout>
 
     </LinearLayout>
 
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/floatingActionButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="30dp"
+        android:layout_marginRight="30dp"
+        android:layout_marginBottom="290dp"
+        android:clickable="true"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:srcCompat="@android:drawable/ic_media_play" />
+
+
     <androidx.viewpager.widget.ViewPager
         android:id="@+id/main_content"
-        android:layout_width="fill_parent"
-        android:layout_height="fill_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+        android:layout_width="wrap_content"
+        android:layout_height="0dp"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="@+id/linearLayout6"
+        app:layout_constraintTop_toBottomOf="@+id/linearLayout6" >
+
+    </androidx.viewpager.widget.ViewPager>
 
 
-</LinearLayout>
\ No newline at end of file
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file