trying to parse elfn's description at https://www.ravelry.com/discuss/stitch-maps/3654158/1-25#7 - we'll see how close this is. The purled stitch in the 1/1 LPC in the first row isn't actually purled: it's slipped wyif.
...there is such a thing as a Row 0. I must try this.
(This stitch map has not been tested: please see jcbriar's elfn's icord, take 2 for a map that distributes the worked stitches and slipped stitches more regularly.)