HIARCS or Lucas Chess are engines that have been made explicitly to play like a human. You won't be able to distinguish them, with some human play in conjunction, from a very strong human player.
Thanks, those do look like they are attempting to play like humans, but neither says how that claim was tested. How would you test the their ability to imitate humans?
That doesn't help you prove they're indisputable from humans, even if you admitted to using them to cheat. You said some engines are indisputable from humans, can you give me some evidence of this?