N'Back 10

Improve Sensory Memory & Working Memory using N'Back.
◆1'Back --- 10'Back
◆Flash Mode / Slow Mode / Step Mode
Tap the number key matches the one from N steps earlier in the sequence.
In 1'Back
1 task1: count & memorize
2 task2: count & memorize
3 __keyboard__: answer for task1
4 task3: count & memorize
5 __keyboard__: answer for task2
6 task4: count & memorize
:
In 2'Back
1 task1: count & memorize
2 task2: count & memorize
3 task3: count & memorize
4 __keyboard__: answer for task1
5 task4: count & memorize
6 __keyboard__: answer for task2
7 task5: count & memorize
: