I finally finished Clue 4. It has been pretty slow going. Lots of stitches, and 6 repeats of the 4 row pattern. On the first row I actually counted the stitches on each repeat as I knit them. Once I had the pattern established it was pretty easy. The only challenge was that the row was long enough and the row patterns similar enough that I occasionally forgot which one I was doing, even with the chart sitting next to me.