Christmas Block Challenge

The 10x10 playing field in the Christmas Block Challenge is ready for use. At each level, multi-colored blocks in the form of various Christmas attributes will be placed on it. Your task is to remove all existing blocks from the playing field. To do this, you will perform seemingly paradoxical actions - add new blocks. But this will be done specifically for removal. If you end up with a row or column without empty spaces that spans the full height or width of the box, it will disappear so you can complete the task in the Christmas Block Challenge.