Centered Double Decrease

What it is

A centered double decrease turns three stitches into one with the centre stitch visually on top.

How Ruke patterns use it

This technique is useful in the Ruke stitch and shaping reference where two stitches must be removed at one point without leaning strongly left or right. The exact handling of the three stitches controls the centre line.

When to use it

Use it when the pattern writes CDD or specifies a centred three-to-one decrease.

What to check

Check which stitch must sit on top and remember that the operation removes two stitches.

Common mistakes

Treating it as K3tog, losing the centre stitch, or calculating only one stitch decreased.