I want to create a check pattern image material mask that doesn't fit the widget size.

Hello. I want to make the character appear in a repeating pattern while designing the widget image, and I am making it with a material.
However, when I apply the material instance to the image widget, the size is automatically adjusted.

What I want is for the pattern to be repeated like the example picture, but it should be cut off when it exceeds the widget size.

Here is the material I wrote. The widget is Draw as: Image Tiling: No Tile.

How can I get a Mask(?) effect like the example image?