Chimp Test
After the numbers are hidden, do you still remember where they were? It measures how many numbers you recall — the higher the better — and your score is kept only in your own browser. Away from this page, EmojiAll is also a reference for emoji copy and paste: every one of the 1,925 Unicode symbols has its own page with a copy button next to the character and its code points.
Chimp Test
The numbers hide — can you still find them
Click number 1 and every number vanishes. Then keep clicking in order: 2, 3, 4 and so on. One mistake ends the run.
About Chimp Test
What Is the Chimp Test?
The chimp test is a number–position memory test in which you tap numbers in order after they briefly disappear: a 5×5 grid shows digits 1 to 9 at random positions; after you tap number 1 all digits vanish at once, and you must, from memory, tap 2, 3, 4 in order until the last one. It suits ordinary users who want to understand their spatial short-term memory, giving a repeatable, comparable number within minutes, with no sign-up, specialized knowledge, or equipment required.
What Is Spatial Memory?
Spatial memory is a type of memory — the short-term retention of object positions, directions, and spatial relationships — part of visual-spatial working memory. It lets you point to a target’s location even when you cannot see it, such as remembering where you put your keys, the placement of pieces on a board, or the layout of buttons in an interface. The chimp test measures exactly this ability: how many positions you can tap in order after the digits disappear is how much positional information your spatial memory can hold at once.
What Is the Origin of the Chimp Test?
The chimp test originates from a series of experiments published around 2007 by Matsuzawa’s team at the Primate Research Institute of Kyoto University. Researchers had chimpanzees perform the task of “tap the numbers in order after they flash” on a touchscreen; the chimpanzees' accuracy was notably higher than that of human university students, especially when the digits were shown for a very short time. Widely reported, this result was later turned into an online version and became one of the most popular spatial memory tests.
Why Take the Chimp Test?
There are three reasons to take the chimp test. First, it quickly and objectively quantifies your spatial memory capacity as a concrete number, rather than the vague “good or bad memory.” Second, it lets you experience the difference between “image memory” and “verbal memory” — many people only realize after doing it that silently reciting the numbers actually slows them down. Third, it works well as an entry point to daily memory testing, helping you observe how sleep, attention, and training affect memory performance.
How to Play the Chimp Test? Rules Explained
The rules are simple: at the start of each round, 4 digits appear at random in a 25-square grid (level 1); after you tap number 1 the digits are all hidden, and you must tap their positions in the order 2, 3, 4. Tap them all correctly to advance to the next round, where the digit count increases by one, until you reach all 25 or make a mistake. Tapping an empty square or the wrong order ends the round immediately, and your score is the highest count you completed in full.
How to Interpret a Chimp Test Score?
On a first attempt, ordinary people usually stop at 5 to 7 digits; reaching above 9 is good, above 11 is excellent, and above 13 approaches the chimpanzees' performance in the experiment. Scores are affected by screen size, finger precision, attention, and current state, so a single result should not be taken too seriously — looking at the average and trend within a week is more meaningful.
What Is the Difference Between the Chimp Test and the Number Memory Test?
Both are memory tests, but they measure different things. The number memory test presents linearly and measures the short-term capacity for a number sequence, which you can improve through grouping and reciting; the chimp test is spatially distributed and measures the visual-spatial memory of positional information, where “photographic” whole-image memory works best. The former is more like “memorizing a phone number,” the latter more like “memorizing moves on a board” — doing both gives a fuller picture of your memory traits.
How to Improve Spatial Memory?
The core of improving spatial memory is to integrate scattered positions into a whole image: first scan the relative positions of all the digits to form a “map,” then tap from 1 along a route, rather than searching one by one. Second, reduce verbal interference — try not to recite the digits, keeping the visual information in the image channel. In the long run, adequate sleep, practice with chess or puzzles, and less fragmented short-video stimulation all help improve visual-spatial working memory.
Can Regular Chimp Tests Improve Memory?
Yes, but the improvement mainly shows on this test and similar tasks. By repeating the chimp test you become increasingly skilled at the “whole-image capture + route planning” strategy, and your count rises steadily — a typical practice effect. This improvement partially transfers to situations requiring temporary position memory, such as chess notation, interface layouts, or parking locations. But it does not equal an overall boost to memory; memorizing words or faces still needs their own practice methods.
Who Is the Chimp Test Suitable For?
The chimp test suits students, office workers, chess enthusiasts, designers, and anyone curious about spatial memory. Students can use it to observe state changes before and after review; office workers can do a round before a meeting or driving as an attention warm-up; older adults can use it as a daily memory self-check. It is not a basis for medical diagnosis — if memory visibly declines in a short period and affects daily life, seek a professional evaluation at a hospital.
Where Are Chimp Test Scores Stored?
All scores are saved only locally in your own browser; nothing is uploaded to a server, and no sign-up is needed. Clearing browser data erases the history, so if you want to compare your spatial memory test scores over the long term, take periodic screenshots or manually record the digit counts — that way you can better see the change curve of your memory test results.
Reference Sites
Below are a few similar online testing sites. This page borrows its rules and scoring from them — visit them for a different interface or a cross-comparison.