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the only program of this type i know.
it has to deal with education, memory(the fast one), vocabulary, semantic rules,associative memory and how quick you brain cels can be.
Pros: Thrilling, even if you play alone despite the time and the score it gives you.
"Glues" your attention like you would not believe if somebody will describes the rules of that game Cons: too dull for action lovers, who will never touch the lavers of the mind witch it sociably more useful.