Positions for visualisations where I can download positions for visualisation training? I am not looking for diagrams, I would like to have only position record saved in standard chess notation.

Or are there such a book?
Visualization training is visualizing moves on the board WITHOUT looking at the board, like:


Tell all the squares controlled by a knight on d4
All the shortest paths to move a knight from a3 to h8
How a Qa5 can attack a Rh4 without being captured
How a Nc4 can check a Kb7 defended by Bb6 without being captured


etc., etc.

you might laugh and think it is easy, but it is not. Try a series of them randomly created and write down your answers then compare them to what you see while looking at the board.

Fun stuff.

Purpose?
It makes you a better calculator when looking at positions during your game. You will eventually instantly see multi-move paths that pieces can take across the board, especially knights.