Dual N-Back

Working memory · Focus training

Ready

day streak

best 0

Daily goal

Bronze · 10m Silver · 20m Gold · 30m

N-Level

A position · L audio · Esc stop

N+21 trials per session

Analytics

Standard round history

Accuracy trend

N-level progression

Prefrontal cortex protocol

Hyper Zen

Self-paced N-back without scores or feedback. Watch your attention. When it drifts, press space. End when you're ready.

Start at depth

A position L audio Space distraction Esc end

space distraction · esc end

Session complete

Your focus pattern

Duration

—

Distractions

—

Per 10 min

—

Longest focus block

—

Avg N

—

Accuracy

—

Distractions over time

History

Local · never leaves this device

Trend · Distractions per 10 min

How to play

Dual N-Back trains working memory by making you track two things at once: where a square appears, and which letter you hear. Each step you decide whether the current square — or the current letter — matches the one from N steps ago.

A

Position match

Press A when the square sits in the same cell it did N steps ago.

L

Audio match

Press L when the spoken letter is the same one you heard N steps ago.

Guided walkthrough

Watch a round play out

N =

—

letter you hear

A position

L audio

Round history · oldest → newest

step 0

speed

1 · Warm up

The first N steps can't be matches — there's nothing N back to compare to yet. Just watch and remember.

2 · Respond

From step N on, tap A and/or L the moment you spot a match. Both can match. Neither is fine too.

3 · Progress

Score ≥ 80% on both streams in a Standard Round and N goes up. Hyper Zen adapts on its own.

Every finished session is saved — see Analytics in Standard Round or History in Hyper Zen.