structure, scope of positional play, traps, tactics.
what do chess masters see when they look at the board that we don't see?

idk what GM's see on the board, but one thing for sure, they think at 64 different places i.e. the 64 squares

I know my answer sounded like a joke but it is not. If you don't believe it you should read about De Groot's experiments in the 1930's. He had this hypothesis that the best players searched deeper, looked at more variations, or had a thought process that led them to better decisions. In fact that's not the case, what happened was that the best players could magically pinpoint better movies within a few seconds, whereas weaker players could not necessarily find the moves given several minutes.

In some sense it's more about what a strong player doesn't see.
In most positions there are what? 10 to 20 legal moves? The stronger the player, the more bad moves they ignore. A move or idea you might consider for 15 minutes (or days, or weeks) they would know is bad immediately.
So from the first second they're looking, the moves and ideas they consider are more to the heart of the position than whatever you're looking at.

Patterns. They see a lot more patterns than we do.
exactly, I used to ask several IM friends of mine and I believe they mean this. And they also point out if I want to be like them I have to spend more time (which I can't sadly...)

what do chess masters see when they look at the board that we don't see?
They can see one move ahead, they see when they're in check, they know whose move it is...
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Nope.
I don't really sub to anyone anywhere to be honest
I have content creators I like, and I just google them when I want to see what they've been up to lately.

I know my answer sounded like a joke but it is not. If you don't believe it you should read about De Groot's experiments in the 1930's. He had this hypothesis that the best players searched deeper, looked at more variations, or had a thought process that led them to better decisions. In fact that's not the case, what happened was that the best players could magically pinpoint better movies within a few seconds, whereas weaker players could not necessarily find the moves given several minutes.
Not magically. Save a few rare exceptions perhaps like morphy and capablanca they find it because they developed that skill through practice and repetition. They recognize patterns because they have spent several hours staring at a chess board. They studied more than us so they understand concepts better and understand positions and evaluate them better. GMs weren't born with the ability to play blindfold chess but they can because after years and years of looking at 64 squares and analyzing and calculating. Same way I am going to find the best moves quicker and more often than someone who is 800, but someone who is 2200 will perform better than me. Intuition is a skill you develop.

“GMs weren't born with the ability to play blindfold chess but they can because after years and years of looking at 64 squares and analyzing and calculating.”
Incorrect. People are born with eidetic memories- some far more developed than others. Repetition and practice certainly advances the talent - but some people are able to visually/ mentally recall most everything- including chess positions.
what do chess masters see when they look at the board that we don't see?