One of the interest cue ball patterns in 3-cushion billiards is the diagonal cross-corner shot. The cue ball comes out of one corner of the table and then goes diagonally across the table into the other corner. The cue ball can follow a simple diagonal, a parallel diagonal, and even triple diagonals.
This is an extensive assortment of cross-corner shots, each showing an successful scoring attempt. For each shot, there are two table layouts. The first is the ball positions on the table. The second is how the pro player made the point.
There are two ways you can use these examples. First - as a mental exercise. Study the ball layout and the ball paths to determine how the shot was played.
Second - as a table exercise. Set the balls up in the positions. Try to duplicate the shot. It may take only a few attempts, or a lot before you learn how to consistently score the point. You will do a lot of experimentation with different speeds and spins.
The result will be a better understanding on how to play similar shots during your competitions. Enjoy the learning process and good luck