As I said above,in Fairy Fair no way to complete last block of yellow candies. Yellow started at 1103 and am now on 1113 with only 8 available yellow. What gives? Time will be running out on Fairy Fair B4 complete
There are not many levels with yellow candy and most are usually kind of difficult in my opinion if you do come across them. You can try playing level 7, 8, 408 or 1055 to collect the yellow candy and complete the challenge. Good luck.