A second try at First Ground

This is a denser First Ground than yesterday's. It has the same number of stitches between crochets as in de Dillmont's. (4 stitches = 4 steps = 2 strides.)  No longer is there an attempt to have two loops engaged at the dismounts. The undip formula is unchanged:

u (nu)^a [uu (up)^a nn (nd)^a]^x.

At two steps (one stride) per triangle, this is the smallest truchet that can be used with an arbitrary undip code. (One step per triangle loses its walking rhythm when the code does not alternate left and right.)