How to play Digits

How many digits can you remember?

A number appears briefly, then disappears. Recall it exactly, including its order. Each correct response adds a digit and a little more viewing time.

1. 01

   Study the number until it disappears.

2. 02

   Type the number and press Enter. Leading zeroes inside the number count.

3. 03

   One incorrect response ends the attempt. Your score is the longest number recalled.

New numbers avoid adjacent duplicates, repeated short blocks and simple counting runs, with balanced digit variety. Chunking can still help. This is a playful recall task, not an IQ score.