Nine focused, single-purpose tests. Each opens in its own page so you can repeat without distraction.
Click the box the moment it turns green.
Type the passage as fast and accurately as you can.
Click numbers in ascending order — they hide after the first click.
Memorize the lit tiles, then click them after they vanish.
Repeat the flashing pattern. It grows each round.
Memorize a number, then type it from memory.
Match the ink color of the word, not what it spells.
Click as many times as possible in five seconds.
Stop the timer when you think the target time has passed.