Dual N-Back is a game that enhances cognitive skills.
A number of studies have shown that training dual n-back for 25 minutes, 4-5 days per week will
increase your working memory and fluid intelligence.
During the game, you are presented with a sequence of audio and visual signals.
Your goal is to press the corresponding button when the current position or audio signal matches position or audio from n step earlier.
An example of Single One Back:
w b a a w b b
For each letter market in red, you have to press the sound button or the "S" key on the keyboard.