Calculation is key to winning chess games. Converting your chess knowledge into concrete moves requires calculation and precise visualisation. The bad news: calculation is hard work. You cannot rely on feeling or intuition -- you will have to turn on your brainpower. The good news: you can improve your calculation skills by training. Set up a position on a chessboard and try to solve exercises without moving the pieces! Grandmaster Ramesh RB is the perfect coach to awaken your chess brain and feed you precisely the right exercises. After only a month of intensive training with Ramesh, I could sense a seismic shift in both the precision of my calculation as well as my general level of sharpness, says GM Daniel Naroditsky.