It is your first day in prison and you are approached by a guard having a hunch for puzzles.
He tells you that he gives every new prisoner the chance to be freed if they can present him with a version of his favorite puzzle that he can not solve. He proudly informs you that no one has gotten out so far; he is just too good.
The puzzle requires the prisoner to arrange $9$ coins in a $3 \times 3$ grid with heads or tails up by his choosing. The guard will then try to find a way to turn all coins to head until the next day. But he is only allowed to turn coins in a slected $2 \times 2$ square or vertical/horizontal line, not only single coins.
After he explained the puzzle to you, he confidently adds "And you know what? Starting today, I will beat everyone without turning any middle lines." You smile and gladly agree to the challenge, with the burning question in mind:
Will I really be the first one to get out?