Instruction
This test measures your ability to memorise and update information.

Letters are presented sequentially and you have to determine whether the letter currently shown matches the one displayed two items ago.

Press A if the letter matches the one two items ago.
Press L if the letter does not match the one two items ago.


Try to be as accurate and as fast as possible.

Note: The task is case-insensitive, so it does not matter whether a letter is displayed as a capital or not to be count as a match.
Press the right arrow key on your keyboard to start the task.