Fantasy bag

Crocheting a square with a convex spiral

Crocheting in a spiral without lifts

Row 1: 4 ch, join into a ring
Row 2: 3 ch, 3 sc, 3 ch, 3 sc, 3 ch, 3 sc, 3 ch, 3 sc
Row 3: * 4 ch, 2 sc (into the ring of 3 ch from the previous row) 2 sc * repeat 3 more times

Then continue crocheting similarly
Row 4: * 4 ch, 2 sc (into the ring of 4 ch from the previous row) 3 sc * repeat 3 more times
Row 5: * 4 ch, 2 sc (into the ring of 4 ch from the previous row) 4 sc * repeat 3 more times
Row 6: * 4 ch, 2 sc (into the ring of 4 ch from the previous row) 5 sc * repeat 3 more times
Row 7: * 4 ch, 2 sc (into the ring of 4 ch from the previous row) 6 sc * repeat 3 more times
Row 8: * 4 ch, 2 sc (into the ring of 4 ch from the previous row) 7 sc * repeat 3 more times
Row 9: * 5 ch, 2 sc (into the ring of 4 ch from the previous row) 8 sc * repeat 3 more times
Row 10: * 5 ch, 2 sc (into the ring of 4 ch from the previous row) 9 sc * repeat 3 more times
Row 11: * 5 ch, 2 sc (into the ring of 4 ch from the previous row) 10 sc * repeat 3 more times
Row 12: * 5 ch, 2 sc (into the ring of 4 ch from the previous row) 11 sc * repeat 3 more times

So, we have 13 sc between the chain stitches. If you turn it, the pretzel is already clearly visible, let's continue:
Row 13: * 4 ch, 1 sc in the 4th ch of the previous row, 4 ch, 10 sc in the 3rd sc of the previous row * repeat 3 more times (I hope I wrote it clearly, it's visible in the photo and it all comes together while crocheting)
Row 14: * 4 ch, 1 sc in the 3rd ch of the previous row, 4 ch, 1 sc in the next 3rd ch of the previous row, 4 ch, 7 sc * repeat 3 more times
Row 15: * 4 ch, 1 sc in the 3rd ch of the previous row, 4 ch, 1 sc in the next 3rd ch of the previous row, 4 ch, 1 sc to form a loop from chain stitches, 4 ch, 1 sc in the next 3rd ch of the previous row, 4 ch, 4 sc * repeat 3 more times
Don't be alarmed, the square will try to bulge out, that's normal; everything falls into place during the process of binding together

Now I'll try to describe the last row very thoroughly
Row 16: * 3 sc, 3 ch, 2 sc (all in the ring of 4 ch)

Then 3 sc with one peak (1 pulled from the ring of chain stitches, 2nd from sc, 3rd from the next ring of ch and all together)

2 sc, 3 ch, 2 sc, 3 sc with one peak, then into the stitch of the previous row we crochet like this 1 sc, 3 ch, 2 sc, 3 ch, 1 sc, 3 sc with one peak....
Now I'll summarize briefly and fully, it goes like this:
Row 16: * 3 sc, 3 ch, 2 sc (all in the ring of 4 ch), 3 sc with one peak, 2 sc, 3 ch, 2 sc, 3 sc with one peak, 1 sc, 3 ch, 2 sc, 3 ch, 1 sc, 3 sc with one peak, 2 sc, 3 ch, 2 sc, 3 sc with one peak, 2 sc, 3 ch, 3 sc, 2 sc in the sc of the previous row * repeat 3 more times
If someone reads diagrams well, it might be easier to crochet the last row from it; that's what I do and here I tried to write it out for those who aren't good with diagrams.

Now I'll explain how I secure them. This happens while crocheting the last row, we fold the squares face to face
I start Row 16 according to the diagram, crochet to the corner, to the stitch of Row 15, then as per the diagram 1 sc, 3 ch, 2 sc, but then 1 ch we crochet second connecting the chain stitches of the other square, 1 ch, and then continue according to the diagram binding each ring of chain stitches together.