What would happen if we turned chess into a puzzle? We would probably have Cover of Knight. 

It is a game in which we have to attack all the cells on the board using as few pieces as possible. When you have managed to attack all the cells, the points of the pieces used to do so are added up and if you have been the one who has achieved it with the lowest score, your record and your name will be uploaded to the record server.

There are two ways of playing, the basic and the advanced: in the basic one you can use as many pieces as you want, while in the advanced one you can only play the set of pieces of a normal game.

https://garajeimagina.itch.io/cover-of-knight