World Snooker Championship Real 2011

This will come naturally in, most likely, your first game or two.
It will require you to sink AT LEAST 4 balls, 2 reds and 2 colours.

Positioning is the most important part of snooker, don't play your shot without considering where the cue ball will end up, and if you're not going to have a shot on a colour / another red, then consider going for a different pot or applying some spin to the ball.