Portable, easy to operate, with an innovative ending.
Effect: The magician takes out some mini tangram pieces and assembles them into a complete rectangle, which fits perfectly within a frame. The magician then takes out two small red squares and skillfully inserts them into the rectangle. Surprisingly, even after adding the two extra pieces, the size of the rectangle does not increase-it still fits perfectly within the frame. But that's not the end. Everything seems like a math puzzle?
However, when the magician picks up the tangram pieces again, they have all merged into a single solid piece. The two small red squares that were just added have also combined into one, forming a heart-shaped pattern.
