How difficult it is to calculate without a chess board. To visualize the position in the head and to then find the solution. I was given four studies and one position from a normal game as a test by Sagar Shah. These five positions had to be solved in my head without a chess board or a computer 2D board.
How did I fare? Watch my video. Along with solving the positions, I also give you some important tips on how to improve your visualization and blindfold calculation.



