Brain Workshop is a free open-source Python version of the Dual N-Back mental
exercise. A recent study in the Proceedings of the National Academy of Sciences
found that a particular memory task, called Dual N-Back, may actually improve
short term memory and fluid intelligence (IQ), previously thought to be
unchangeable. The game involves remembering a sequence of spoken letters and a
sequence of positions of a square at the same time. Brain Workshop includes an
optional Triple N-Back mode that introduces differently colored squares as a
third stimulus.