Is it possible to get 99.x% accuracy in back to back games?

I'm a pretty erratic player, so it's not out of the ordinary for me to lose games on a lot of blunders. 

However, I recently played a guy who made moves that seemed unnatural even when it seemed like an obvious forcing simplification... as it turns out... his accuracy was 99.7% and 99.5% respectively... 

Is it possible for 1500 and lower player to execute the best move every single move and make the other player feel like there is 0 chance of doing anything. 

the second of two... this one left clear for me that something was off.

no inaccuracies, mistakes, or blunders in two games. 

What is the meaning? Do people use engines for simple games between amateurs? Will this issue be addressed??? 

Myself, I had games with 99% accuracy in cases where my opponent made a mistake and the game was forced from there and was pretty short. I had over 90% when the game is long but there is an endgame where many moves are ok. Just to mention that I play longer games , where accuracy is naturally a bit higher.

Accuracy by itself is not a proof for anything. That being said, when in doubt, just report and leave the rest to the higher ups.  If there is something... fishy so to speak, they will give you back your points. I got my points back a couple of times and most of the times that was when I didn't even reported anything.

answer:  yes, it is possible that an average rated player (1400 to 1700 approx) could play a game with 99% accuracy on all moves - I've done that in 3|2 time control and reviewed it after to find out I played nearly perfectly. {one game out of many with few blunders or major errors by me... not my 'normal' game... }   HOWEVER - if you report your suspicions to staff, they will look into it - and possibly put a monitor on all his games - to find out if this was a 'one-time-lucky-moves-selection' by the player (as in my case) or if this is his 'standard of play' and he just keeps on playing perfectly - a lot.....    they also have different engines to check his play against - and see if his moves match one or another of the engines - and if so, soon enough - he will be banned.

look at it another way:  you learned from playing against him - some moves that won't work well in the long run; and by learning, you are improving your move selection in your favorite opening - for future games.....   and soon enough, you will recover the rating points lost anyway (meaningless if you are having fun, who cares about rating.... )

nklristic said it well - just report suspicions to staff and let them do their 'magic'.

It doesn't seem that suspicious, report if you want to

Please see this post: https://www.chess.com/forum/view/community/discussions-about-cheating

If you believe someone might be cheating, feel free to report it: https://support.chess.com/article/209-how-do-i-report-someone.

Note, however, that the "accuracy" score is not designed for cheat detection and should not be taken as a clear indicator of cheating.  Even low-rated players can get accuracy scores of 99 or greater; not usually for two consecutive games, but given the millions of games played on the site every day, unusual things happen a lot.

Also note that public accusations are not permitted.

Further discussion of cheating-related topics should be in the Cheating Forum: https://www.chess.com/club/cheating-forum