There are liquorice shells blocking the three exits in the middle.
The dragons are worth 30,000 points,[1] which is equal to the one-star target score.
Stars[]
Stars
Score
11,500
22,000
55,000
110,000
Strategy[]
The second dragon drops at 16 moves left and the third dragon drops at three moves left (earlier when no more on the board). Clear the liquorice shells and release the dragons before the 13 moves have elapsed since the earlier dragon spawned so that you may have enough moves to bring them down.
Note that an dragon at the second or sixth column (second column from outside) will slide to the exit in the next column if the candy and the liquorice lock under the liquorice shells are destroyed (while the liquorice shells still exist).
Trivia[]
Notes[]
Miscellaneous Info
↑3 dragons × 10,000 points per dragon = 30,000 points