this was from 2013..twocat sam used to love this one.....I got the idea of it from watching online live that there was rarely a full column of the same colour in a line...a bit like the matrix idea that john legend was famous for with ds..I would say whatever you thought of iv,e done it....I was younger back then...I have quite a few tetris sheets I,ll upload a few I think...you can choose to bet for or against ..choose flat or progression...choose which column by the tick box you want to bet...I,ll just upload a couple...all sheets are made by knicksmi I did push him a lot...these were his earlier works for me and now he is a super excel making guy