You have to patiently wait for them to make a mistake, and when they do, meticulously exploit it.
Grinding in chess
Here is a masterclass in grinding. It is a draw all the time, until black finally makes a mistake.
https://www.chessgames.com/perl/chessgame?gid=2127373
Recently,I have played a tournament with very strong players.I found that it was very difficult to win against even lower rated players.I mostly ended up with draws.When I checked with the engine it was a seemingly perfect game but not that they are unbeatable they have also lost to other players
So,how do you grind a win against good solid players