What are you referring to? Looks like you have several three-in-a-rows, and some other squares are highlighted because they will be invalid once you fix the triples. (Could be wrong!)

I got a similar thing - a different valid permutation than the "official" one.

http://i.imgur.com/yzD9qFL.png

Well, at least I'm not the only one who apparently didn't pay attention for half of the tutorial. :)

I didn't have any three-in-a-rows, nor identical rows. What rule are you referring to?

You do. Row 3 and 6 are both RBRBRB.

edit: I see you noticed.

Oh ok, rows 3 and 6 are identical. I feel stupid now.

Seems it would be better if the "that's not right" error highlighted the matching rows rather than what to click on to win.

Oh, sorry! Confused.

rows three and six are identical

rows 3 and 6 are the same.

You can't have 3 of the same colour in a row