As beginner chess player I need an advice from more expert players.
After one month I will partecipate to an OTB tournament and I want to improve my skills doing tactic exercises.
Is it useful to do the tactics on a real chess board or it really doesnt't matter and I can do the tactics visualizing a chessboard on a computer screen?
I don't have too much time to dedicate to the preparation, every tactic exercise takes some time to prepare the real board, so, if the benefit is not evident, maybe in the same amount of time I can do more tactics in front of a computer.
What do you think about?