When you start the game, you will be given a 77 square table. Those squares will slowly be filled with Christmas-themed icons. At this point you are expected to create icons with higher numbers above them by combining icons with lower numbers. To match squares with the same icons and upgrade to a new icon, you need five of the same icons in a column or row. So it's better to start by moving the items with number 1 to match them. If you manage to connect five of them, you will see them merge into one icon with the number 2. You can continue like this until you get one icon with the number 40. Of course, with each move, new icons come, and you need to connect the icons as fast as possible to avoid run out of seats!
control
You can use your computer's mouse to select icons and move them.