Hi,
I wrote a simple "game" or "test" to train the working (a.k.a. short-term) memory. Computer generates random sequences of numbers or letters and you have to remember and repeat them. It's very configurable, you can choose straight or reversed order of answers, extending the sequence or a new sequence for each new level and so on.
Configuration and hi-scores are stored to INI file. All in poor 420 lines of code
.
Currently you can download from SourceForge sources only:
https://sourceforge.net/projects/memtrain/files/source/I tested on Linux, Qt 64bit, GTk2 64bit and Wine (32bit).
Enjoy!