diff --git a/src/main/java/ruscz/game/gameOfProd/Windows/WindowOfFreeMove.java b/src/main/java/ruscz/game/gameOfProd/Windows/WindowOfFreeMove.java
index 841b22e..87fcbfb 100644
--- a/src/main/java/ruscz/game/gameOfProd/Windows/WindowOfFreeMove.java
+++ b/src/main/java/ruscz/game/gameOfProd/Windows/WindowOfFreeMove.java
@@ -28,6 +28,7 @@ public class WindowOfFreeMove extends JFrame {
     public static final int KEY_RIGHT = 39;
     public static final int KEY_DOWN = 40;
     public static final int KEY_EVENT = 69;
+    public static final int KEY_FULLSCREEN = 115;
 
     private Canvas canvas;
     private DialogBar dialogBar;
@@ -109,6 +110,14 @@ public class WindowOfFreeMove extends JFrame {
         addKeyListener(new KeyAdapter() {
             @Override
             public void keyPressed(KeyEvent e) {
+                if (e.getKeyCode() == KEY_FULLSCREEN){
+                    if (getExtendedState() == MAXIMIZED_BOTH)
+                        setExtendedState(NORMAL);
+                    else
+                        setExtendedState(MAXIMIZED_BOTH);
+                    return;
+                }
+
                 if (canPersonMove) {
                     nextMove = e.getKeyCode();
                     inputTimer.start();
@@ -130,10 +139,9 @@ public class WindowOfFreeMove extends JFrame {
         lp.add(canvas, JLayeredPane.PALETTE_LAYER);
         lp.add(dialogBar, JLayeredPane.POPUP_LAYER);
 
-
-        setTitle("Ahoj");
         setDefaultCloseOperation(EXIT_ON_CLOSE);
-        setBounds(0, 0, CELL_SIZE * WINDOW_WIDTH, CELL_SIZE * WINDOW_HEIGHT + CELL_SIZE / 2);
+        setUndecorated(true);
+        setBounds(0, 0, CELL_SIZE * WINDOW_WIDTH, CELL_SIZE * WINDOW_HEIGHT);
         setLocationRelativeTo(null);
         setResizable(false);
         setVisible(true);