Matching candies and special candies that have at least 1 candy with jam under it will spread the jam to the candies that do not and spread to where a special candy lands. Color bombs and coloring candy combos are great for spreading jam.
There are 2 different types of jam, purple and red. Purple jam is not stationary and will drop to the lowest point it can reach where the Red jam will stick to the spot it was spread to
Fish not on Jam will go to a blocker
Fish on Jam will go to an empty space they can put the Jam
Purple jam will fall through licorice swirls and locks
On Purple jam boards if the bottom of the board is filled with licorice swirls you do not have to remove them.. the jam will spread to where they are while they are there
Wrapped candy that are set off on jam will spread to the surrounding area but if it drops and is no longer on jam it's second explosion will not spread jam since it is no longer on jam
If you have no moves to break blockers or spread jam make special candy or collect your friends candy
Working on the bottom of the board can spread the jam in the squares above and clear blockers
Use Special Candies to hit the areas you can't reach or make a match in
Special Candies are always helpful
Combine Special Candies.. my go to is Color Bomb + Striped
Narrow areas are harder so match in so check there before moving for a match
Using a Color Bomb also makes it easier to make the other Special Candies since it reduces one of the colors on the board
Remove Licorice Swirls and blocks so they are out of the way of your special moves and give more room to make Special Candy