diff --git a/index.html b/index.html
index 47f036b..1906586 100644
--- a/index.html
+++ b/index.html
@@ -13,6 +13,8 @@
 <script type="text/javascript" src="js/level-selector-controller.js"></script>
 <link rel="stylesheet" href="css/level-selector.css" type="text/css" />
 
+<script type="text/javascript" src="js/level-complete-controller.js"></script>
+
 <link rel="stylesheet" href="css/flippy.css" />
 <script type="text/javascript" src="js/flippy.js"></script>
 </head>
@@ -52,7 +54,21 @@
         </flippy-back>
 
     </flippy>
+</div>
 
 
+<div id="levelCompleteContent" ng-controller="LevelCompleteController" ng-show="isLevelCompleteVisible">
+   <div id="congratulation">Congratulations!</div>
+        <div>
+            <a class="levelButton" id="replayButton" ng-click="restartLevel()"><i class="fa fa-repeat"></i>Play again</a>
+            <a class="levelButton" id="nextButton" ng-click="nextLevel()" ng-hide="isFinalScreenVisible"><i class="fa fa-arrow-right" ></i>Next level</a>
+        </div>
+        <div>
+            <a class="levelButton" id="webButton" ng-click="openUrl(constellation.wiki)" ng-show="isFinalScreenVisible">
+                <i class="fa fa-thumbs-up" ></i>Visit PF 2015 website</a>
+        </div>
+    </div>
+</div>
+
 </body>
 </html>
diff --git a/js/level-complete-controller.js b/js/level-complete-controller.js
new file mode 100644
index 0000000..c49ff50
--- /dev/null
+++ b/js/level-complete-controller.js
@@ -0,0 +1,34 @@
+angular.module('level-complete', [])
+.controller('LevelCompleteController', function($scope, $rootScope) {
+     
+    $scope.isLevelCompleteVisible = false;
+    
+    $scope.isFinalScreenVisible = false;
+    
+    $scope.levelIndex = 0;
+     
+    $scope.completeLevel = function(event, args) {
+        $scope.isLevelCompleteVisible = true;
+        $scope.levelIndex = args.levelIndex;
+    };
+     
+    $scope.restartLevel = function() {
+        $scope.isLevelCompleteVisible = false;
+        var args = {
+            levelIndex: $scope.levelIndex
+        };
+        $rootScope.$emit('startLevel', args);
+    };
+    
+    $scope.nextLevel = function() {
+        $scope.isLevelCompleteVisible = false;
+        $scope.levelIndex++;
+        var args = {
+            levelIndex: $scope.levelIndex
+        };
+        $rootScope.$emit('startLevel', args);
+    };
+     
+    $rootScope.$on('completeLevel', $scope.completeLevel);
+    
+});
\ No newline at end of file
diff --git a/js/pexeso-controller.js b/js/pexeso-controller.js
index 646fc69..3fdc8e1 100644
--- a/js/pexeso-controller.js
+++ b/js/pexeso-controller.js
@@ -1,8 +1,63 @@
-angular.module('app', ['angular-flippy', 'level-selector'])
+angular.module('app', ['angular-flippy', 'level-selector', 'level-complete'])
 .controller('PexesoController', function($scope, $timeout, $rootScope) {
     
     $scope.isLevelVisible = false;
     
+    $scope.levelIndex = 0;
+    
+    // How many cards must be found as the same.
+    $scope.chainLength = 2;
+    
+    /**
+     * Level descriptor:
+     * 
+     * totalCards - How many cards are on the board
+     * chainLength - How many cards must be found from the same kind
+     * cardType - Define type of game
+     *  - picture - display image of item
+     *  - "languageCode" - display text in specified language
+     *  - oneLanguage - pickup one language for each card on the beginning of game
+     *  - randomLanguage - each turn of card selects different language for the same item
+     */
+    $scope.levels = [
+        {
+            totalCards: 2*2,
+            chainLength: 2,
+            cardTypes: ['picture', 'picture']
+        }, 
+        {
+            totalCards: 4*4, 
+            chainLength: 2,
+            cardTypes: ['picture', 'picture'] 
+        }, {
+            totalCards: 4*4,
+            chainLength: 2,
+            cardTypes: ['picture', 'en-US']
+        }, {
+            totalCards: 4*4,
+            chainLength: 2,
+            cardTypes: ['picture', 'oneLanguage']
+        }, {
+            totalCards: 4*4,
+            chainLength: 2,
+            cardTypes: ['picture', 'randomLanguage']
+        }, {
+            totalCards: 3*3,
+            chainLength: 3,
+            cardTypes: ['picture', 'picture', 'picture']
+        }, {
+            totalCards: 3*3,
+            chainLength: 3,
+            cardTypes: ['picture', 'randomLanguage', 'randomLanguage']
+        }, {
+            totalCards: 4*4,
+            chainLength: 4,
+            cardTypes: ['picture', 'randomLanguage', 'randomLanguage', 'randomLanguage']
+        }
+    ];
+    
+    $scope.currentLevel = $scope.levels[0];
+    
     $scope.languages = {
         'cs-CZ': {
             title: 'Čeština'
@@ -109,16 +164,26 @@ angular.module('app', ['angular-flippy', 'level-selector'])
     };
     
     /**
-     * Generate playing board.
+     * Generate game board.
      */
     $scope.generateBoard = function(totalCount) {
         $scope.board = [];
+        var fullStack = []
         var stack = [];
         angular.forEach($scope.basicCards, function(card, cardId) {
-            stack.push($scope.getCard(card, cardId, 1));
-            stack.push($scope.getCard(card, cardId, 2));
+            fullStack.push($scope.getCard(card, cardId, 1));
         });
         
+        for (var groupIndex = 0; groupIndex < totalCount / $scope.chainLength; groupIndex++) {
+            var cardIndex = Math.floor((Math.random() * fullStack.length)); 
+            var card = fullStack[cardIndex];
+            fullStack.splice(cardIndex, 1);
+            for (var instanceIndex = 0; instanceIndex < $scope.chainLength; instanceIndex++) {
+                var tempCard = $scope.getCard(card, card.cardId, instanceIndex + 1)
+                stack.push(tempCard);
+            }
+        }
+        
         for (var index = 0; index < totalCount; index++) {
             var coordinate = Math.floor((Math.random()* stack.length));
             $scope.board.push(stack[coordinate]);
@@ -172,6 +237,19 @@ angular.module('app', ['angular-flippy', 'level-selector'])
         return true;
     };
     
+    /**
+     * Check whether all items on the board are solved.
+     */
+    $scope.isLevelComplete = function() {
+        for (var index=0; index < $scope.board.length; index++) {
+            var item = $scope.board[index];
+            if (item.state != "solved") {
+                return false;
+            }
+        }
+        return true;
+    };
+    
     /**
      * Reset selection of current cards
      */
@@ -205,6 +283,9 @@ angular.module('app', ['angular-flippy', 'level-selector'])
         
         if ($scope.areAllSelectedSame()) {
             $scope.setSelectionState('solved');
+            if ($scope.isLevelComplete()) {
+                $timeout($scope.completeLevel, 1000);
+            }
         } else if ($scope.selectionCounter == $scope.maxSelected) {
             $timeout($scope.resetSelection, 1000);
         } 
@@ -216,10 +297,21 @@ angular.module('app', ['angular-flippy', 'level-selector'])
      * Start Level
      */
     $scope.initLevel = function(event, args) {
-        $scope.generateBoard(4*4);
+        $scope.levelIndex = args.levelIndex;
+        $scope.currentLevel = $scope.levels[$scope.levelIndex];
+        $scope.generateBoard($scope.currentLevel.totalCards);
         $scope.isLevelVisible = true;
     };
     
+    /**
+     * Level complete - display level outro screen.
+     */
+    $scope.completeLevel = function() {
+        var args = {
+            levelIndex: $scope.levelIndex
+        };
+        $rootScope.$emit('completeLevel', args);
+    };
     
     $rootScope.$on('startLevel', $scope.initLevel);