It wasn't easy, I've tried all kind of combos between Wiphala because the "rainbow" of nationalities from Bolivia and the current horizontal tricolor flag of it, even to place a central black on white Viracocha "squared" symbol from Tiwanacu, all this so I could achieve the classic 2/3 ratio, but in the end, after 6-7 attempts..."screw these, back to the basics"...the obvious simplistic choice prevailed, hence the 6/9 squares instead of the traditional number 7/7 used for the different versions of it). I think the bolivians will be okay with me if the middle white diagonal is the only one with more than "7"...at least it's strongly looks like a ladder/stairs (plus the idea of time..I wonder if I combine white and black squares...neah), which is a very powerful symbol in the Andes myths...
It's not very original but I hope will be part of this [link] *Edited, now is part of it, thanks Fenn-O-maniC.