Here are a few photos for Clue 1. Round 3 Front and Round 3 Back which also appeared in the mini-clue are a little tricky. In Round 3 Front you have to put a front post single crochet around the post of the stitch below in Round 2, then chain 2, then another front post single crochet around the same post. Without skipping or chaining, you move on to the second stitch with the same (fpsc, ch 2, fpsc) around the post, and repeat for each of the remaining 22 st in the round.
I changed color to make it more clear. This is the ch-1 to start the round (but in a different color.)
After the ch-1 you insert your hook from front to back to front around the post of the first st of the round (in this case the first st is the ch-3 which counts as a dc.)
Here is what it looks like after the first fpsc around the ch-2 post:
After the (sc, ch 2, sc) around the first post:
Here we are going right on to the second dc from Round 2, and working the fpsc around it:
Completed Round 3 Front:
Now for Round 3 Back, hold piece toward you and peek behind these last completed stitches. This is in two colors so it is easier to see, but you can see the unworked loops of Round 2 behind. It is into these unworked loops of Round 2 that we will work Round 3 Back. Easy peasy.
Now join your yarn with a slip stitch and carry on.
Later in Round 8, here is a photo of where you place your Fptr. If you find it hard to keep your post stitch loose, you can add an extra “yo” and make it a Fpdtr.