Nine Patch Uneven Nine Patch
The Uneven Nine Patch style of quilt block is so named because not all of the nine individual patches are the same size as is the case in a regular nine patch quilt block. This style of quilt block is often used in 10" quilt block to make the math easier, but you will find this construction method in many other quilt blocks as well.

Interlocking Chain

Free Quilt Block Pattern

The Interlocking Chain quilt block is one of several optical illusion quilt blocks featured on this website. The "chain" seems to flip at the outer edges to reveal the "underside" of the fabric as it weaves over the alternate colour scheme.

This seven patch block features only simple shapes -- squares and half square triangles to make the design. Its interest lies in the choice of fabrics to achieve the desired effect.

Check out other "optical illusion" blocks:
~ Folded Corners
~ Formal Frame
~ Garden Square
~ Ribbon Star