Well it is not easy. I think many people think they are decent in doing it, but once they check the result they have trouble seeying clear 2/3 moves ahead. In a recent interview on chessbase.com they asked Carlsen how many moves he could calculate ahead and he answered: Carlsen: That depends on the game situation. Sometimes 15 to 20. But the trick is to correctly assess the position at the end of the calculation.
If you are interested you could look on google for the "stepping stone" technique.
And some tips to improve calculation is:
- Don't use the analyse board on chess.com. Try to calculate a variant, write it down and then when ready play it on a chessboard to see if you calculation was correct.
- Put any critical position on a chess board. Try to calculate ahead without making moves. Remove all pieces from the board and try to setup the position you just calculated.
- Look at a position at a game. Remove the game and try to setup the position you have in your mind.
We all know that visualization is very necessary in chess. The questions I had asked myself – How can one learn to calculate? How can one see three (or more) moves ahead? I am an active chess player, but i don't think my visualization ability increases over time. There are some cases that i am winning in the middlegame using some tactics i have learned but as the endgame passes by, I cant calculate the right moves as I cannot visualize the next moves. I dont think just playing chess over and over again can improve this. So my question is- how? or being good in vusualizing is just a talent inborn?