This level is currently nearly impossible to beat without boosters (or even with boosters). This is likely caused by a level buff, lack of moves, an objective which requires insane luck to fulfill, a level glitch, or a design error. This level is currently, or likely one of the hardest levels of the game.
Level 5690 is the fifteenth and last level in Rainbow Reef and the 1191st mixed mode level (429th jelly-order). To pass this level, you must clear 51 double jelly squares, collect 57 frosting layers and 3 liquorice shells in 15 moves or fewer.
When you complete the level, Sugar Crush is activated and will score you additional points.