There`s a thread somewhere around in which a member says he has a workaround. However, he will only give it away to people who have around 50 thanks or so.
The reson you won`t see any working command for 1 hit kill anytime soon here is because we are SURE everyone and their pokemons will abuse it on public and make the developers fix it.
There is, however, another alternative commands. To find them, you must lift your spirit and search for the golden word!