I saw a quilt hanging in a shop (don't remember which one!) and it was made from triangles all on black and white fabrics. It appeared to be 3 or 4 strip pieces sewn together, then cut in large triangles. Each triangle was then placed right side up, then upside down, then right side up, etc. to make each row. Does anyone have any clue what I'm trying to desribe and know what this pattern is called? thanks!