The Dual N-Back

The Dual N-Back is a focused brain-training puzzle that challenges and improves working memory using simultaneous visual and auditory cues. Watch the grid, listen to the letters, and decide if the current cue matches the one N steps earlier. Difficulty adapts to your performance, turning short sessions into meaningful cognitive workouts. It offers dual, visual-only, and audio-only modes, a clean distraction-free interface, and configurable session length and speed. Track accuracy, N level progression, and streaks to measure improvement and stay motivated.

Focus on both the grid and the spoken letters at the same time. Press the visual button when the square matches the position from N steps ago. Press the audio button when the current letter matches the one from N steps ago. Confirm both buttons if visual and audio cues match on the same turn. Keep accuracy high to increase N, and expect N to decrease after too many errors for a gentler challenge. Adjust speed and session length, choose practice modes, and review detailed stats after each run to improve.