I've heard that all the stronger chess players (GMs and the like) are naturally able to play blindfold as a consequence of their chess visualization skills. What's the minimum rating where this happens - can 2300s play blindfolded? 2000s?
And also, if I train to be able to play blindfolded will my rating increase?
2300, I think as long as you can lyft 850 lbs you should be good for picking up any chest without seeing.
Played my first blindfold games at 13 or 14 years old when I was like a 1500 rated chess player. It is related to brain skills more than chess skills. You need to have a strong visual memory. When I can't remember something I saw, like a book author or title, I try to see it again in my mind, like in a dream, and usually it works.