Hello coaches and all chess friends,

I have been working with different sources and courses in chess. And I seem to realize that some coaches are really strict about using a board when studying or analyzing a chess game or a position, and some are just fine and not that strict about that. 

In myself, I have not notcied a big difference, I prefer to use the board to have a real tournament feeling, but most of the time I depend on an elctronic 2D board using online websites or chessbase. 

And sometimes when I play over the board, I feel like I do slightly better than when I play online.

Now some websites like chess.com and also chessbase prgoram they offer a 3D view, but of course it is not a real board.

From your exprience, have you noticed any difference? What do you think is better for your progress ?