That sounds easy enough, but I am not able to do it (I figured out that should be the process like the 5th time playing it), but I do not know if it's just that I'm not smart enough. So I request you to play and test whether it is indeed possible to win every time
So to show of a little i put up the high score of 10100. I forcefully finished there. Only thing i can add now is if you got only two colored numbers under each other you must spread the 9 and 0 out over the third and fourth guess. For the fourth guess you want to be sure to always have at least a colored number in every column thats not repeating in the column.