The instructions for the Tunisian Extended Crossed stitch are as follows:
Crossed ExTtr (Crossed Extended Tunisian treble): Skip the next vertical bar, yoh, insert hook under the front loop of the next vertical bar, yrh and pull up a lp, yrh and pull through 2 lps, 1 ch (one ExTtr worked), ExTtr in the skipped vertical bar.Â
Note that the "yrh and pull through 2 lps" should be done
just once and not twice.