How to re-create 10-letter-wordgame

Question

Creating this game From Lingo. 2 letters needs to swap what aren't at the correct spot. The only thing I achieved is to move in the red correct ones and move out the incorrect yellow ones. Shuffeld beforehand.

But what is next?

Code:
Yes I have WPF solution and code.

        public MainWindow()  
        {  
            InitializeComponent();  
            DrawTextblocks_10_C(Word_canvas_10_C);  
            DrawTextblocks_10(Word_canvas_10);  
        }  
  
        public Label[] Letter_labels_10 = new Label[10];  
        public Border[] Backgrounds_10 = new Border[10];  
        public Label[] Letter_labels_10_2 = new Label[10];  
        public Border[] Backgrounds_10_2 = new Border[10];  
        public void DrawTextblocks_10_C(UniformGrid Word_canvas_10_C)  
        {  
            for (int j = 0; j < 10; j++)  
            {   
                RadialGradientBrush Red = new RadialGradientBrush()  
                {  
  
                };  
                GradientStop stop1 = new GradientStop(Colors.Maroon, 1.0);  
                GradientStop stop2 = new GradientStop(Colors.Red, 0.251);  
                Red.GradientStops.Add(stop1);  
                Red.GradientStops.Add(stop2);  
  
                Border Background_10 = new Border  
                {  
                    Background = Red,  
                    Width = size,  
                    Height = size,  
                    Margin = new Thickness(0, 0, 0, 0),  
                    BorderBrush = new SolidColorBrush(Colors.DarkGray),  
                    BorderThickness = new Thickness(6),  
                };  
  
                Label Label_10 = new Label  
                {  
                    Height = size,  
                    Effect = drop,  
                    Width = size,  
                    FontSize = 75,  
                    Background = new SolidColorBrush(Colors.Transparent),  
                    HorizontalContentAlignment = HorizontalAlignment.Center,  
                    VerticalContentAlignment = VerticalAlignment.Center,  
                    Margin = new Thickness(-5, -20, 0, 0),  
                    Foreground = new SolidColorBrush(Colors.White),  
                };  
  
                Backgrounds_10_2[j] = Background_10;  
                Background_10.Child = Label_10;  
                Word_canvas_10.Children.Add(Background_10);  
                Canvas.SetLeft(Label_10, j * Word_canvas.Height);  
                Canvas.SetTop(Label_10, j * Word_canvas.Height);  
                Letter_labels_10[j] = Label_10;  
  
            }  
        }  
  
        public void DrawTextblocks_10(UniformGrid Word_canvas_10)  
        {  
            for (int j = 0; j < 10; j++)  
            {  
                RadialGradientBrush Yellow_block = new RadialGradientBrush  
                {  
                    GradientOrigin = new Point(0.5, 0.5),  
                    Center = new Point(0.5, 0.5),  
                    RadiusX = 0.45,  
                    RadiusY = 0.45  
                };  
                Yellow_block.GradientStops.Add(new GradientStop(Colors.Goldenrod, 1.0));  
                Yellow_block.GradientStops.Add(new GradientStop(Colors.DarkBlue, 1.0));  
  
                Border Background_10 = new Border  
                {  
                    Background = Yellow_block,  
                    Width = size,  
                    Height = size,  
                    Margin = new Thickness(0,0,0,0),  
                    BorderBrush = new SolidColorBrush(Colors.DarkGray),  
                    BorderThickness = new Thickness(6),  
                };  
  
                Label Label_10 = new Label  
                {  
                    Height = size,  
                    Effect = drop,  
                    Width = size,  
                    FontSize = 75,  
                    Background = new SolidColorBrush(Colors.Transparent),  
                    HorizontalContentAlignment = HorizontalAlignment.Center,  
                    VerticalContentAlignment = VerticalAlignment.Center,  
                    Margin = new Thickness(-5, -20, 0, 0),  
                    Foreground = new SolidColorBrush(Colors.White),  
                };  
  
                Backgrounds_10[j] = Background_10;  
                Background_10.Child = Label_10;  
                Word_canvas_10_C.Children.Add(Background_10);  
                Canvas.SetLeft(Label_10, j * 118);  
                Canvas.SetTop(Label_10, j * 118);  
                Letter_labels_10_2[j] = Label_10;  
            }  
        }  
  
private async void OnKeyDownHandler(object sender, KeyEventArgs e)  
        {  
            if (e.Key == Key.T)  
            {  
                List word_10 = new List(){ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" };  
                List word_10_2 = new List() { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" };  
                List randomizedList = new List();  
                  
                Random random = new Random();  
                for (int i = 10 - 1; i > 1; i--)  
                {  
                    int rnd = random.Next(i + 1);  
                    var value = word_10[rnd];  
                    word_10[rnd] = word_10[i];  
                    word_10[i] = value;  
                    randomizedList.Add(value);  
                }  
  
                for (int i = 0; i < 10; i++)  
                {  
                    Letter_labels_10_2[i].Content = word_10[i].ToString();  
                    Letter_labels_10[i].Content = word_10_2[i].ToString();  
                }  
  
                List numbers = new List(10);  
                List numbers_left = new List { 0, 1, 2, 3, 4, 5, 6, 6, 7, 8, 9 };  
                score_10 = 70;  
                L_score_10.Content = score_10.ToString();  
  
                SoundPlayer Lingos = new SoundPlayer { Stream = Properties.Resources.Start_woord };  
                Lingos.Play();  
  
                Word_canvas_10_C.Visibility = Visibility.Visible;  
                _10_score.Visibility = Visibility.Visible;  
  
                Word_canvas_10_C.RenderTransform = new TranslateTransform(0, 118);  
                _10_score.RenderTransform = new TranslateTransform(0, 118);  
  
                DoubleAnimation Show_10 = new DoubleAnimation(400, 0, new Duration(TimeSpan.FromMilliseconds(250)))  
                {  
                    AutoReverse = false,  
                    RepeatBehavior = new RepeatBehavior(1)  
                };  
  
                Storyboard.SetTarget(Show_10, Word_canvas_10_C);  
                Storyboard.SetTargetProperty(Show_10, new PropertyPath("RenderTransform.Y"));  
  
  
                DoubleAnimation show_score = new DoubleAnimation(400, 0, new Duration(TimeSpan.FromMilliseconds(250)))  
                {  
                    AutoReverse = false,  
                    RepeatBehavior = new RepeatBehavior(1)  
                };  
  
                Storyboard.SetTarget(show_score, _10_score);  
                Storyboard.SetTargetProperty(show_score, new PropertyPath("RenderTransform.Y"));  
  
                var sb = new Storyboard();  
                sb.Children.Add(Show_10);  
                sb.Children.Add(show_score);  
                sb.Begin();  
                await Task.Delay(1450);  
  
                while (numbers.Count < 3)  
                {  
                    int rnd = new Random().Next(0, 10);  
  
                    while (!numbers.Contains(rnd))  
                    {  
                        SoundPlayer Bonus = new SoundPlayer { Stream = Properties.Resources.Bonus_letter };  
                        Bonus.Play();  
                        Word_canvas_10_C.Visibility = Visibility.Visible;  
  
                        Backgrounds_10[rnd].RenderTransform = new TranslateTransform(0, 118);  
                        Backgrounds_10_2[rnd].RenderTransform = new TranslateTransform(0, 118);  
  
                        DoubleAnimation show_in = new DoubleAnimation(0, size, new Duration(TimeSpan.FromMilliseconds(600)))  
                        {  
                            AutoReverse = false,  
                            RepeatBehavior = new RepeatBehavior(1)  
                        };  
  
                        Storyboard.SetTarget(show_in, Backgrounds_10[rnd]);  
                        Storyboard.SetTargetProperty(show_in, new PropertyPath("RenderTransform.Y"));  
  
                        DoubleAnimation show_out = new DoubleAnimation(0, size, new Duration(TimeSpan.FromMilliseconds(600)))  
                        {  
                            AutoReverse = false,  
                            RepeatBehavior = new RepeatBehavior(1)  
                        };  
  
                        Storyboard.SetTarget(show_out, Backgrounds_10_2[rnd]);  
                        Storyboard.SetTargetProperty(show_out, new PropertyPath("RenderTransform.Y"));  
  
                        var sb0 = new Storyboard();  
                        sb0.Children.Add(show_in);  
                        sb0.Children.Add(show_out);  
                        sb0.Begin();  
                        numbers.Add(rnd);  
                        numbers_left.Remove(rnd);  
                        await Task.Delay(500);  
                    }  
                }

XAML