The Tic Tac Toe Scarf is very pretty. The Tic Tac Toe stitch looks a little complicate to knit, but is not, just follow this free pattern and you will see how fast you will get it and you will have your scarf ready for this winter, you can change the colors for your scarf I think gray and yellow are very beautiful contrast, but all depend if the scarf will be for women, men, girl or boy.
Knitting needles size 8
2 yarns size 4: Yellow and Gray
DYO: Double Yarn Over (Wrap yarn twice)
Note: Carry the yarn up as you see in the below pictures
4th. Row (Right Side) (Gray)
a. Knit 1, with yarn at the back Slip 1, drop the DYO (next two wraps), Knit 2, with yarn at the back Slip 1, and drop the DYO.a.