A central double decrease is a decrease that creates a spine. The stitches decreased are the outside stitches, which are twisted to fall behind the center stitch. It is a bit of a pain to do, but sometimes it is necessary.
The best way to mark this decrease is to place a marker before the central stitch because it doesn’t change.
- When you are 1 stitch before the marker, slip the next stitch to the right needle, going into the stitch to slip as to knit (twisting it).
- Slip the marker and the next stitch off the left needle or onto a cable needle, held in front.
- Slip the slipped stitch to the left needle.
- Put the marker on the right needle
- Pick up the loose stitch with the right needle and return it to the left needle.
Put the right needle into the 3 stitches on the left needle through the back legs and k3tog-b*.
Central double decrease accomplished! Two stitches decreased. –2
On WS rows, work all the stitches, slipping the marker when encountered.
*k3tog-b (aka knit 3 together through back leg)
