Probably some bot got it. Happens with openly visible code drops. :-(
Hmmm... Looks like it was better to give it myself to someone...
To Keep in mind next time.
Some people here replace some letters in their code with a question mark and then describe, what letter has to be put there, to throw off bots. For example:
? = what you get when you substract any number from itself.
Perhaps that would be an idea next time. In any case thanks for trying to give away a game here.