One Block Quilt:  Pick the same block for block 1 and 2.

Two Block Quilt:  Pick a different block for block 1 and 2.

Checkerboard Layout:  Pick a block for block 1 and a square for block 2.

Inverse Block Quilt:  Pick a light and dark version of the same block.

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Change the outer triangles from light to dark by clicking the arrow in the lower right corner.