6-6 not unique?

[coolDisguise]

Hi guys, could someone please explain to me, what the reasoning behind 6-6's solution is? I was left with the rightmost column (1 of 5 already blue) and I think 4th from the right, basically the second from the right in the bigger circled hex (in this colum there was 1 hex already blue). The clue saying there will always be a odd number of hexes in each column could have meant I was supposed to fill 2 in each column, since I had 4 left. I didn't really see why the solution (that I found) was necessarily the correct one. All other puzzles made sense, yet this one left me guessing.

That one: http://images.akamai.steamusercontent.com/ugc/39742315107187185/6A1B8A3B43DBC8BAB62C5D0437C139A5CB300C5F/

Hexes 2 to 5 (from top to bottom) in the leftmost column were not yet filled, hexes 2 and 3 in the 4th from the right. There were 4 hexes left in total as part of the pattern. Anyone knows a good explanation?

[Berahlen]

It's...very difficult to tell what you were looking at after having already finished it. Especially since you mentioned the leftmost column and the rightmost column and I have no idea which you meant.

[Berahlen]

Okay, so I just loaded that puzzle up again, and got to what I assume was a relevant state for your question.

http://imgur.com/zU72JNi

You'd like to know why I marked the two cells on the left as red? Because one of the hints is that the inner sections only contain 7 each, and I already have 6. I can only take neither or both of them to keep the column odd, and taking both puts too many cells in the section.

Thus, both of the cells on the left are empty. And since we know there's exactly one left in the circled green stuff, the very bottom cell below it must also be empty to keep the column odd.

From there, the rightmost column stays open until the end of the puzzle. Solving the entire left half leaves you with 4 remaining and only 4 places to put them.

[coolDisguise]

Case closed, I somehow missed that hint with the 7 hexes in the inner parts. I feel dumb now. -.-

It was only 6 hexes left - two of the ones you marked in red that are below each other and the outermost right column, except for the top one.
Anyway, thank you!