CLEEVER Brainfrom DURAHUMAN
N-Back Level 2
N-Back Cognitive Endurance
Train your working memory and sustained attention

How to Play

  1. 1. Watch squares light up in the 3×3 grid
  2. 2. Press SPACE when the current position matches the position from 2 steps back
  3. 3. Stay focused for 30 trials
  4. 4. Your brain will adapt and strengthen with practice

This trains:

  • • Working memory capacity
  • • Sustained attention
  • • Cognitive endurance
  • • Processing speed

Safety features:

  • • Pause anytime with ESC
  • • Auto-break if stress detected
  • • Adaptive difficulty
  • • Recovery breathing available