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Lizely

N-Back Memory Game

Play a fixed 1-back and unlockable 2-back memory game with transparent hit, miss, and false-alarm counts.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Start the 1-back route and memorize each opening stimulus before moving forward.
  2. 2.For each answerable item, choose Match when it equals the item N places back or No match when it differs.
  3. 3.Finish a clean 1-back route to unlock 2-back, then review hits, misses, false alarms, and correct rejections.

About N-Back Memory Game

N-Back Memory Game is a small sequence game about comparing the current item with one shown earlier. In the 1-back route, each answer asks whether the current shape name matches the immediately previous one. In the 2-back route, the comparison moves two positions back. This page keeps the rules visible and the routes fixed. That choice makes the activity easy to replay, easy to test, and easy to describe without pretending that a hidden algorithm has measured anything about you. The opening items are shown for observation only because they do not yet have enough earlier items for a comparison.

Choose Start 1-back to begin. Read the first item and press Show next stimulus. Once an answerable item appears, choose Match or No match. You can also use M and N on a keyboard, but labelled buttons remain available for touch, mouse, and keyboard users alike. The game accepts one answer token for each stimulus. If a rapid second click is delivered after the game advances, it is rejected instead of being silently counted as an answer to the next item. This keeps the displayed hit, miss, and false-alarm counts tied to one clear judgement at a time.

A hit means you chose Match when the current item really matched the item N places back. A miss means you chose No match on a real match. A false alarm means you chose Match when the two items differed. A correct rejection means you chose No match on a non-match. The completion panel lists all four numbers and the route accuracy. Those labels describe decisions in the fixed route only. They are not scores from a norm group, educational test, medical tool, or psychological instrument. The sequence is product-authored and does not draw from an external question bank or personal data.

The 2-back button is locked at first. Complete the full 1-back route with no misses and no false alarms to unlock it for this browser session. A finished route with an error remains useful because it shows where a match judgement went wrong, but it is not called a win and it does not unlock the next level. Restart returns to the level selector while preserving an earned unlock locally. This small progression gives the game a clear goal without presenting a partial result as proof of skill, capacity, health, or improvement.

This page is an entertainment exercise, not a clinical/IQ/cognitive assessment. It does not diagnose memory, attention, learning, intelligence, or a medical condition. It does not claim to train your brain, improve cognitive performance, or predict how you will perform elsewhere. The same route can feel easier or harder for ordinary reasons such as familiarity, interruptions, screen size, or a different time of day. A private game result should stay a private game result. If you need an evaluation for school, work, health, or accessibility, use an appropriate qualified service instead of this page.

The game runs entirely in your browser. It asks for no account, camera, microphone, upload, or profile. The shared game shell may keep a local best score in browser storage, but it is not sent to Lizely and can be removed with your normal browser controls. The page uses readable word stimuli instead of a required audio or hardware channel, so the full route remains playable with a pointer or keyboard. Other memory games on the site use different disclosed rules; none should be combined into an assessment. Pick a route, hold the recent sequence in mind, and enjoy the transparent game feedback.

Methodology & sources

The 1-back and 2-back routes are fixed product-authored stimulus sequences. Each answer is evaluated once against the disclosed N-position rule and classified as a hit, miss, false alarm, or correct rejection. The game contains no norm table, diagnostic cutoff, external item bank, or claim of training efficacy.

Frequently asked questions

How do I unlock 2-back?
Complete the fixed 1-back route with no misses and no false alarms. The unlock is stored only for the current browser game session.
What is the difference between a miss and a false alarm?
A miss is choosing No match when the current item really matches N places back. A false alarm is choosing Match when it does not.
Does this N-Back game assess my memory or intelligence?
No. It is an entertainment exercise with fixed product-authored routes and no clinical, IQ, cognitive, educational, or population benchmark.

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