The target in level 143 is to clear all of the jelly and score 70,000 points, all in 40 moves. The grid is setup up with the three hit brown swirls making a swirl themselves, with a 15 move bomb in the middle. The best plan is to work as close to the middle as you can from the start. In this example that was difficult, but you should work as close to the middle as possible. And remember the brown swirls are jelly spaces so in reality they take four hits to clear. Hopefully you will be as lucky as this and get a horizontally or vertically striped candy to take care of the bomb.