🎯 Dual N‑Back
2‑back
N‑back level:
1-back
2-back
3-back
4-back
5-back
▶ Start Game
⟲ Reset
—
Trials
0
Accuracy
0%
Score
0
Ready
📍 Position match (A)
🔤 Letter match (L)
✨ Both match (Space)
A
position match ·
L
letter match ·
Space
both match ·
S
start/stop