Getting a novel technique is impossible, there is less and less new theory, and they know all the tricks, but the only way one can possible gain an advantage on a Grandmaster is baiting them into an opening line they they do not know well and you know very well, which again is very unlikely considering they study the game for life and even then, converting said advantage would be very difficult.
The difference between International Masters and Grandmasters is big enough, but the difference between Grandmasters and amateurs is abysmal. You can see this with the Elo System (rating system), players under 200 Elo points their rival are expected to win almost never.
They can even beat amateurs with their eyes blinded, and this is not a joke, one can just see the many videos of Grandmasters giving opponents odds like this.
Getting a novel technique is impossible, there is less and less new theory, and they know all the tricks, but the only way one can possible gain an advantage on a Grandmaster is baiting them into an opening line they they do not know well and you know very well, which again is very unlikely considering they study the game for life and even then, converting said advantage would be very difficult.
The difference between International Masters and Grandmasters is big enough, but the difference between Grandmasters and amateurs is abysmal. You can see this with the Elo System (rating system), players under 200 Elo points their rival are expected to win almost never.
They can even beat amateurs with their eyes blinded, and this is not a joke, one can just see the many videos of Grandmasters giving opponents odds like this.