I got a zero which oddly is a good thing. It reminds me of the HIV negative test/skit Daniel Tosh did. Wish I didn't close the page before knowing to use the Http for image. Oh well, it's a learning curve. I'm going to have my cousins try this today at thanksgiving. They are both blue/green color blind and it should be interesting. Oh yeah, for those that scored high I wonder if this would help the score and reduce error. As a strategy try move all color similar to one side and the other colors to the opposite side then work towards the middle from each end. Also when working towards the middle, once you started with the obvious color, to determine the correct position of a square test by moving it one spot forward and one spot back and this should reduce the error and give a truer score.