If Ivanov was cheating and i have to say if for a reason. If - Then. Well here comes the big one. Then we have to check everybody that was in that room as they may also be in on it. Ever seen how pick pockets take things off suspecting victims. Same could be said here as they removed the device he used and they walked away before he was checked.
Remove all the impossible and we are left with the anwser. He cheated with help from maybe 1-2 people. I have to bring up what was his motive? As it is real obvious he did cheat. Now just distracting us from what we should be talking about here. What did he or somebody else gain from this event?
@royalbishop, no that is not correct. Houdini on good hardware would not lose to any human, even Carlsen would be hard pressed to draw against it.
Except for Ivanov, he won ten in a row!