Two classic tests of short-term memory
Your working memory โ the mental scratchpad that holds information for a few seconds โ has a famously small capacity. Psychologist George Miller put it at "seven, plus or minus two" items in his landmark 1956 paper, and modern research suggests it's closer to four chunks. These two free games measure where you fall.
Sequence memory
Tiles light up one at a time, and you repeat the sequence. Each level adds one step. This is serial recall: the same skill you use to remember a phone number long enough to dial it. The average player taps out around level 8 โ beyond that, the players who keep going are almost always chunking, grouping single tiles into mini-patterns the way you remember a phone number as three groups instead of ten digits.
Visual memory
A pattern of tiles flashes for just over a second, then disappears. Reconstruct it from memory. The grid grows from 3ร3 to 6ร6 as you level up, and you have three lives. This measures visuospatial memory span โ the capacity that helps you remember where you parked and whether you locked the door.
Why train memory?
Working memory capacity correlates strongly with reading comprehension, mental math, and fluid intelligence. While "brain training" won't turn anyone into Einstein, regular practice on memory span tasks measurably improves performance on the task itself and builds encoding strategies that transfer to everyday remembering.
Round out your cognitive profile with the reaction time test or the full IQ test.