How to Play
- Watch the square
Is it in the same place it was N steps back?
- Watch the letter
Separately: is it the same letter as N steps back?
- Follow the level
Clear a block and N goes up. Struggle and it comes back down.
N-Back
The best-known working memory task there is. A square lights up and a letter appears — and the question, every time, is whether each of them matches what came N steps ago.
Ready for the real thing?
One practice run at 1-back that walks you through it, then three scored blocks that follow you up or down. No sound needed.
Two separate questions every trial: the square, and the letter. Press either, both, or neither.
What It Challenges
- Working memory
Hold two rolling sequences at once and update both every few seconds.
- Interference
Let go of what is now too old to matter, without losing the rest.
- Sustained focus
Keep it up for a whole block, not just a few trials.
Neuriosity quizzes are designed for fun and personal insight, not as medical or diagnostic assessments.