Number memory

A number flashes briefly — type it back. Each level adds a digit, Human Benchmark style.

A number appears briefly, then you type it back. Each level adds one digit. How far can you go?

Level 1 · digits shown: 3

Runs entirely in this tab — nothing is sent anywhere.

How to use

  1. Press start.
  2. Memorize the digits shown.
  3. Type them back — a miss ends the run.

What it supports

Levels start at 3 digits and grow to 40; display time ~1.1 s + 0.75 s per extra digit. Exact match only — no partial credit.

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