Hi, thanks for your participation.
This task does not run in cellphone devices, so please use a PC or notebook.
It should take you around 5 minutes to do the whole task. Once you start, do not stop.
Start only if you have time available to do the task without interruptions or distractions
Please enter your ID. Do not refresh or close this page, otherwise you will not be able to enter again.
Before we start, please indicate your level of proficiency in English language:
In this task, all you will need to do is type codes that will be displayed to you.
Your objective is to type them as fast as possible.
Ready for the challenge?