Train your working memory

The classic Dual N-Back exercise — adaptive, free, no sign-up.

Level
2-back
Duration
Interval
Time between steps — shorter is harder.
Sound
2-back
Trial 0/0

Paused

Keyboard: A = position, L = sound

0 Score

Statistics

0Sessions
–Best level
0Day streak

Level over your last sessions

Play your first session to see your progress here.

Settings

N levelHow many steps back you must remember.
2
Adaptive levelRaise the level at ≥80% accuracy, lower it below 50%.
SoundSpoken letters use your device's voice.
Instant feedbackButtons turn green/red when you press.
Reset progressDeletes all statistics on this device.

How to play

🔊 “K”
  1. Every step, a square lights up on the grid and a letter is spoken at the same time.
  2. Press POSITION if the square is in the same place as it was N steps ago.
  3. Press SOUND if the letter is the same as the one N steps ago.
  4. Both can match at the same time — then press both buttons.
  5. At level 2-back you compare with 2 steps ago, at 3-back with 3, and so on. The level adapts to your accuracy automatically.
  6. Train a little every day. Dual N-Back targets working memory — short, regular sessions beat long rare ones.