Here is my view on this:
- You will have to be included in the event in the first place (make sure you buy boosters with your excess gold before vetting starts on Monday)
- You will have to be able to crush at a speed of four episodes per hour or faster
- You will need a lot of luck
That's it.
The structure of Candy Crush has been simplified in the past year, so it is that simple. Millions of players take part, thousands can crush at the required speed, so luck will probably be one of the biggest factors to determine who gets to go to London.
So: Good luck everyone!