Bricked wave (pattern)

This blackwork stitch consists of partial rectangles joined in a wave pattern. It gives an angular effect, suitable for larger areas.
Method
1
Start by stitching a horizontal row of running stitches over four threads and under one thread of the fabric.
2
Stitch a parallel line two fabric threads below, ensuring each stitch is in line with the previous row.
3
Continue to fill the space.
4
Work across the shape again, with a vertical stitch over two fabric threads to join the horizontal lines at alternate ends. Concentrate on a column at a time and zig zag across the shape.
5
Continue across the space.

Structure of stitch
Embroidery Techniques
References
-
Various Authors, The Royal School of Needlework Book of Embroidery (2018) , p.152
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Becky Hogg, RSN Essential Stitch Guides: Blackwork (2010) , p.76