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 3781 is the eleventh level in Crumbly Cave and the 1001st candy order level. To pass this level, you must collect 8 red candies and 8 yellow candies in 12 moves or fewer.
When you complete the level, Sugar Crush is activated and will score you additional points.
The need to collect the sugar keys by getting over so many blockers to collect all orders makes this level nearly impossible to get over.