Rated tt does indeed force you to calculate, but it also forces you to rely on your pattern recognition in a timed practical environment. If you want to solely work on calculation (something I actually suggest) then:
Try some unrated chess.com tt problems, or go to chesstempo.com and do tactics there. The point is to solve some tactics without a timer, and calculate all the pertinent variations before you make your first move.
Hi!
Do you know any good ideas to improve your calculation skill? One of my goals in 2014 is to reach Tactics Trainer rating around 2200. However, I'm hovering around 1900. I think there are many reasons for this(such as lack of patterns recognition), but I think the biggest problem is my lack of calculation skill. In fact I often fail in problems which demand you to calculate some long varitaions.
I am thinking to solve some endgame studies, but if you know any other good ideas or a method which worked for you, please tell me!
Thank you!