French name: Point Zig-zag en Croix.
I have found it in several books and tinkered with it before. It is easy and fun.
Work it like this:
Take a double straight stitch at the end of the row, then begin the return journey.
On my Aida sampler I made the mistake of using variegated thread, NOT a good idea.
Fill a square on this 'fake' canvas. There should be no problem, this time!?