Inquiring minds want to know: How quickly can you stack the Christmas presents on Santa’s sleigh without leaving any spaces? Well, now you can find out by checking out Tech Treasure #11—Present Stacker.

Here’s how it works: Select different shaped gifts—squares, rectangles, triangles and trapezoids—from the conveyor belt and drop them neatly into place on the sleigh without leaving any gaps. Choose from one of seven skills levels to beat the clock—and your high score!

Play this fun—yet tricky—shape and space game by accessing The Twelve Digital Days of Christmas interactive Thinglink image located here.