Puzzle pada Pemrograman Visual(.Net)

Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Button2.Visible = False Then
Button2.Visible = True
Button1.Visible = False
Button2.Text = Button1.Text
Else
If Button4.Visible = False Then
Button4.Visible = True
Button1.Visible = False
Button4.Text = Button1.Text
End If
End If
cek()
End Sub

setelah itu kita lanjutkan ke button2 sampai button 9, sintak'a seperti ini...

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
If Button1.Visible = False Then
Button1.Visible = True
Button2.Visible = False
Button1.Text = Button2.Text
ElseIf Button3.Visible = False Then
Button3.Visible = True
Button2.Visible = False
Button3.Text = Button2.Text
ElseIf Button5.Visible = False Then
Button5.Visible = True
Button2.Visible = False
Button5.Text = Button2.Text
End If
cek()
End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
If Button2.Visible = False Then
Button2.Visible = True
Button3.Visible = False
Button2.Text = Button3.Text
Else
If Button6.Visible = False Then
Button6.Visible = True
Button3.Visible = False
Button6.Text = Button3.Text
End If
End If
cek()
End Sub


Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
If Button1.Visible = False Then
Button1.Visible = True
Button4.Visible = False
Button1.Text = Button4.
Text
ElseIf Button5.Visible = False Then
Button5.Visible = True
Button4.Visible = False
Button5.Text = Button4.Text
ElseIf Button7.Visible = False Then
Button7.Visible = True
Button4.Visible = False
Button7.Text = Button4.Text
End If
cek()
End Sub

Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
If Button3.Visible = False Then
Button3.Visible = True
Button6.Visible = False
Button3.Text = Button6.Text
ElseIf Button9.Visible = False Then
Button9.Visible = True
Button6.Visible = False
Button9.Text = Button6.Text
ElseIf Button5.Visible = False Then
Button5.Visible = True
Button6.Visible = False
Button5.Text = Button6.Text
End If
cek()
End Sub

Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
If Button7.Visible = False Then
Button7.Visible = True
Button8.Visible = False
Button7.Text = Button8.Text
ElseIf Button9.Visible = False Then
Button9.Visible = True
Button8.Visible = False
Button9.Text = Button8.Text
ElseIf Button5.Visible = False Then
Button5.Visible = True
Button8.Visible = False
Button5.Text = Button8.Text
End If
cek()
End Sub

Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click
If Button8.Visible = False Then
Button8.Visible = True
Button7.Visible = False
Button8.Text = Button7.Text
Else
If Button4.Visible = False Then
Button4.Visible = True
Button7.Visible = False
Button4.Text = Button7.Text
End If
End If
cek()
End Sub

Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click
If Button6.Visible = False Then
Button6.Visible = True
Button9.Visible = False
Button6.Text = Button9.Text
Else
If Button8.Visible = False Then
Button8.Visible = True
Button9.Visible = False
Button8.Text = Button9.Text
End If
End If
cek()
End Sub

Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
If Button2.Visible = False Then
Button2.Visible = True
Button5.Visible = False
Button2.Text = Button5.Text
ElseIf Button4.Visible = False Then
Button4.Visible = True
Button5.Visible = False
Button4.Text = Button5.Text
ElseIf Button6.Visible = False Then
Button6.Visible = True
Button5.Visible = False
Button6.Text = Button5.Text
ElseIf Button8.Visible = False Then
Button8.Visible = True
Button5.Visible = False
Button8.Text = Button5.Text
End If
cek()
End Sub

Private Sub cek()
If (Button1.Text = "1" And Button2.Text = "2" And Button3.Text = "3" And Button4.Text = "4") Then
If (Button5.Text = "5" And Button6.Text = "6" And Button7.Text = "7") Then
If (Button8.Text = "8") Then
MessageBox.Show("Selesai")
End If
End If
End If
End Sub

End Class

Setelah kita masukan sintaksnya kita running atau tekan tombol F5