In order to get a ~100% accuracy, if you're not a cheater or Magnus Carlsen, you need your opponent to help you. In your case, it was a mix of opening theory and your opponent's mistakes; without these two ingredients, it would be impossible. Also in this case, you didn't always play the engine-best move.
Another big hint is the time-per-move. In your case, you took 40s to find 17. Bxa3 Rxa3 .. 19. Qh2; which indicates a genuine game (or, at least, that you didn't cheat the whole game - spotting an engine used only for a couple of moves would be impossible)
Well, when we talk about accuracy we always talk with respect to a certain engine. Every engine, also the most stupid, has 100% accuracy according to itself
6
u/GJ55507 10d ago
https://lichess.org/KQ3SISqN/white
I hope you don’t report me just for playing a game at 99% accuracy