Memory
Chain Sum
Link neighboring numbers. Use the exact tile count and hit the target sum.
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Memory / DAY 002
Digit Span Memory
Digits flash one by one. How many can you hold in your head?
How to play
- 1
Digits appear on screen one at a time — memorize the sequence.
- 2
When they stop, type the digits back in the same order.
- 3
Each success adds one more digit. Two misses and the run ends.
Why it works
Digit span is the classic working-memory test used in cognitive psychology for over a century. The average adult holds about 7 digits — pushing past that trains the mental scratchpad you use for math, reading and conversation.
FAQ
What is an average digit span?
Around 7 digits, plus or minus 2. A span of 9 or more is exceptional.
Any tricks to remember more?
Chunking: group digits into pairs or triples (like a phone number) instead of holding them one by one.
More workouts
Memory
Echo Grid
Watch the pattern light up. Echo it back. It only gets longer.
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Focus
Color Count
Ignore the shapes. Count one colour. Then report your number.
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