I'm having a cold and going through Kleenexes faster than a porn addict with Duracell stamina.

So, the question is what therapy exercise to engage in, that fits a brain that's semi dysfunctional due to fever. Last time, I made a Sudoku solver. This turned out to be very useful, because every time someone says "You should try Sudoku!", I can just end the persuasion attempt by replying "I've already solved the general case".

Might do a Rubik's cube solver this time.