This example reproduces a Sol LeWitt wall drawing as an interactive SVG composition of alternating horizontal and vertical stripes. A central circular mask reveals horizontal black bars over a white background, while a second inverted mask reveals vertical black bars, creating a checkerboard-like optical effect. The piece uses two SVG `<mask>` elements with `<circle>` and `<rect>` primitives to define the visible regions, and generates 100 striped rectangles in each direction via a JavaScript loop.