How to play
- 1
A number flashes on screen for a brief moment.
- 2
Type the exact digits from memory.
- 3
Each success adds a digit; a miss ends the run.
What this test measures
This game measures short-term memory for digits. You encode a number in a glance and recall it as the length grows.
Score guide
| Grade | Range |
|---|---|
| Photographic | 10+ digits |
| Excellent | 8–9 digits |
| Great | 6–7 digits |
| Average | 4–5 digits |
| Beginner | 2–3 digits |
| Novice | 0–1 digits |
FAQ
- How is the score counted?
- Your score is the number of digits in the longest number you recalled correctly.
- Can I replay the flash?
- No. Each number appears once, then you type it from memory.
- Does it work on a phone?
- Yes. Use the on-screen keypad or your keyboard.
- Is this a diagnostic digit-span test?
- No. It is a free game inspired by digit recall, not a clinical tool.