Is there a reason you don't store the images of submitted games? Acquiring real-world training data to test changes with would be very useful. Perhaps make it an opt-in feature people can select when uploading a game so people are "offering" you this information to you rather than you just "taking" it.
One way to choose between two legal candidate moves would be to look forward for the next move by the candidate pieces and see which ones make sense given. If you are trying to choose between e6 and e5, for instance, look forward and see what the next e pawn move is. Plenty of other ways to go about this, of course.
One way to choose between two legal candidate moves would be to look forward for the next move by the candidate pieces and see which ones make sense given. If you are trying to choose between e6 and e5, for instance, look forward and see what the next e pawn move is. Plenty of other ways to go about this, of course.