Level 3105 is the tenth level in Valentine Valley and the 1185th jelly level. To pass this level, you must clear 54 double jelly squares in 25 moves or fewer.
When you complete the level, Sugar Crush is activated and will score you additional points.
In the first few moves, try to open the board up as much as possible. Besides the goal of opening up, there is no need to actively clear the top area, as they will be cleared by the cake bombs.
After that, wrapped candy+wrapped candy, color bomb+color bomb, color bomb+striped candy, and striped candy+wrapped candy are your friends. Color bomb+wrapped candy rarely helps clear the cake bombs, but may help opening up the board at first.
The bottom two cake bombs, especially the one on the right, are hardest to clear of the jelly, so do give them some extra attention while clearing.