1 star: 10000 points
2 stars: 25000 points
3 stars: 50000 points
You need to create space in order to create color bombs. Each blocker is a 4 hitter, so try to get rid of the stuff in the middle and work out. All 6 candies are in play here, so it becomes a bit harder to create a color bomb. Try to do your best to keep 1 or 2 colors around as much as possible to increase the chance of making one.
Patricia Frederick’s Tips for Candy Crush Level 176
It’s not necessary to remove all the blocks—in fact it’s a waste of moves. Give yourself room to create the color bombs, but it’s possible to work only one side and still be able to pass the level.