Solution to Level 24 is at 2:25 in video.
I made video guides for all 50 levels in the game, in case anyone is stuck on a level.
If anyone is stuck, I made video guides on how to solve every level.
If anyone is stuck, or is interested in how to solve all the levels using the fewest moves required (for a better speedrun time), I made video guides for all the levels.
Here is a video guide to level 29. (8:12 in video)
I made video guides showing how to finish all levels with a 3-star rating while using the fewest possible moves; in case anyone is stuck.