why so many purple and orange gems for level 993?

300bowler

That is a crazy amount of purple and orange gems to crush in so little moves. Used all my boosters and never came close. The board never drops enough. Think its time to quit this game for awhile

aCe

Don't quit, maybe just take a little break. Just try and make every move about the orders. Even if its lining up the colors next to other combinations. Check it out here. Maybe this will help you when you wish to try again: 

https://www.youtube.com/watch?v=cf0D3uU6dsY