IQ Game - Test Your Memory

This is a test your visual memory game. Run the game and memorize the location of each image on the screen and then click back to match the image.

Sample code:

        public void showpic() // show each picture if clicked by computer...
        {
            gn = new generate();
            for (int k = 0; k < global.siz; k++)
            { 
                switch (j[k])
                {
                    case 1:
                        plym1();
                        gn.pp1.Visible = true;
                        gn.pp1.Image = global::WindowsFormsApplication3.Properties.Resources.christmas_ball_1;
                        gn.pp2.Visible=false;
                        gn.pp3.Visible = false;
                        gn.pp4.Visible = false;
                        gn.ShowDialog(); 
                        break;
                    case 2:
                        plym2();
                        gn.pp2.Visible = true;
                        gn.pp2.Image = global::WindowsFormsApplication3.Properties.Resources.christmas_ball_2;
                        gn.pp1.Visible = false;
                        gn.pp3.Visible = false;
                        gn.pp4.Visible = false;
                        gn.ShowDialog(); 
                        break;
                    case 3:
                        plym3();
                        gn.pp3.Visible = true;
                        gn.pp3.Image = global::WindowsFormsApplication3.Properties.Resources.christmas_ball_3;
                        gn.pp2.Visible = false;
                        gn.pp1.Visible = false;
                        gn.pp4.Visible = false;
                        gn.ShowDialog();
                        break; 
                    case 4:
                        plym4();
                        gn.pp4.Visible = true;
                        gn.pp4.Image = global::WindowsFormsApplication3.Properties.Resources.christmas_ball_5;
                        gn.pp2.Visible = false;
                        gn.pp3.Visible = false;
                        gn.pp1.Visible = false;
                        gn.ShowDialog(); 

                        break;
                }
            } 
        } 

            Random r = new Random(); // generate random number between 1 to 4
            a = r.Next(1, 5);
            while (i != global.siz)
            {
                j[i] = 0;
                a = r.Next(1, 5);
                { 
                    j[i] += a;