90% of time you do not calculate, you "feel" the moves. There is a saying that a difference between SuperGM, GM, IM, and a master is how many times a game they

90% of time you do not calculate, you "feel" the moves. There is a saying that a difference between SuperGM, GM, IM, and a master is how many times a game they have to really spend time on a move that they are not sure of. SuperGM might be unsure about 1-3 times a game, GM 3-5, IMs 5-7, and as a master I have about 7-10 moves. Notice that depending on your time control, you will still want to take time to verify-calculate your "feel" moves.