"I had the impression that he wasn't tense or even fully concentrating on the game in critical positions, while outplaying me as black in a way I think only a handful of players can do."

That's a mere gut feeling, how on earth is Niemann supposed to defend against such a vague allegation? Magnus is a world-class competitor not only in chess but also in fantasy football and even quite decent at poker, so it stands to reason that he knows a thing or two about statistics and game theory. I was hoping he'd have far more concrete evidence than what he shared in this statement (like maybe he was playing a game that he'd deliberately prepared to test how long Niemann will take to compute certain hard-to-spot key moves; even that would still be extremely vague, but at least give Niemann something to concretely address). He is such an outstanding brain that I'm willing to give him the benefit of the doubt, but he needs to produce concrete evidence.

In the end Magnus hints that he has more to share, and I hope he will do so soon. Otherwise I don't see how we could get to any sort of satisfying resolution here (short of Niemann suddenly confessing, which seems unlikely, and we still don't have evidence that he has anything to confess at all).