N-BACK · WORKING MEMORY
Remember N steps ago.
Letters flash one at a time. Tap MATCH when the letter is the same as the one shown N letters ago. Start at N=2, increase as you improve. Gold standard for working memory research.
20
letters per round
~25%
are real matches
±5
ELO per round
Hard
tests pure working memory
Choose difficulty:
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0 / 20
Tap only if the letter matches the one 2 steps ago.
RESULT
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