As a general rule, an intermediate block is rarely more difficult to make -- it just contains more pieces and therefore more seams. This is the reason that it is important that you can sew an accurate quarter inch seam allowance. Once you have mastered a precise seam allowance, you will have no difficulty in sewing the majority of quilt blocks.
Free Quilt Block Pattern
The Country Crossroads quilt block makes great use of the half square triangle patches. Although there are quite a few, nothing about the construction of this block is difficult, with care and precision in your sewing,
Being a seven patch, it is easy to create a larger quilt in less time, as these blocks can be made as 14" finished blocks (although instructions are also given for a 7" quilt block).
By setting the quilt blocks on point or as a straight set, you can achieve a very different resultant quilt, as illustrated in the sample quilt drawings.