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Let me tell you one story, which I read somewhere (just do not remember where).
It was during World War I.
German army was in a broad offensive.
French army was retreated.
Then the French aviation scattered fly-sheets with similar puzzles over the German army.
The German soldiers started collecting these fly-sheets; stopped their attack; and started solving the puzzles.
The German attack was stopped, in this way.
As a conclusion, I want to say that your puzzle suits very well for such a purpose !
(and doesn't suit for anything else).