Visual Memory

Squares light up briefly — remember which ones, then find them again.

• Squares flash green for 2 seconds.
• After they disappear, click all the squares that were lit.
• Get them all right to advance to the next level.
• One wrong answer ends the game.

Visual working memory — the ability to hold and manipulate visual information over short periods — is one of the strongest predictors of general intelligence and fluid reasoning ability.