diff --git a/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/GameActivity.java b/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/GameActivity.java
index 8907380..da45e48 100644
--- a/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/GameActivity.java
+++ b/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/GameActivity.java
@@ -129,10 +129,22 @@ public class GameActivity extends BaseActivity implements NavigationView.OnNavig
                 difficultyCheck.setPuzzle(container.getFixedValues());
                 boolean possibleToSolve = difficultyCheck.solve();
 
-                if (possibleToSolve) {
-                    String difficulty = difficultyCheck.getDifficulty().toString();
-                    container.parseDifficulty(difficulty);
-                    gameController.loadLevel(container);
+                String difficulty = difficultyCheck.getDifficulty().toString();
+                container.parseDifficulty(difficulty);
+                gameController.loadLevel(container);
+
+                if (!possibleToSolve) {
+
+                    AlertDialog.Builder builder = new AlertDialog.Builder(GameActivity.this);
+                    builder.setMessage(R.string.impossible_import_notice)
+                            .setCancelable(false)
+                            .setPositiveButton(R.string.okay, new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int id) {
+                                    finish();
+                                }
+                            });
+                    AlertDialog alert = builder.create();
+                    alert.show();
                 }
 
             } else {
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 04ea1c9..4f0215d 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -32,6 +32,7 @@
     <string name="hint_confirmation_confirm">Benutzen</string>
     <string name="loadgame_delete_confirm">Löschen</string>
     <string name="hint_usage">Wähle ein gültiges Feld aus und drücke dann auf den Hinweis Knopf um dann das makierte Feld aufzulösen.</string>
+    <string name="impossible_import_notice">Das Sudoku, das du importieren möchtest, hat keine Lösung.</string>
     <string name="loadgame_delete_confirmation">Bist du sicher, dass du den Spielstand löschen möchtest?</string>
     <string name="menu_continue_game">Spiel Fortsetzen</string>
     <string name="menu_reset">Zurücksetzen</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 5e45fd0..b8595ba 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -20,6 +20,8 @@
 
     <string name="generating">Generating new level in the background&#8230;</string>
 
+    <string name="impossible_import_notice">The sudoku you wish to import has no solution.</string>
+
     <!-- ###SETTINGS### -->
     <string name="title_activity_settings">Settings</string>
     <!-- #Highlight -->