Chessformer (A well made chess puzzle game with gravity)
Chessformer is a recreation of the popular game on steam which costs real MONEY. which no one can afford. this scratch game offers a similar experience with all the levels so you don't have to pay
Also, the first person (not me) to complete all 48 levels gets a cool shoutout both in the description and in the project.
As of now no one has done all 48 levels. Also you don't have to know how to play chess to play it but knowledge is preferable

https://scratch.mit.edu/projects/951354044

this is a really fun game