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Is there a significant difference between the 2? I have a gift card to Barnes and Noble and would like to use it to pick up the powerscore logic games bible but the latest edition they seem to have is the 2013 version. I would much rather prefer to use the gift card but if there is a big difference I'll just shell out the $50 to get the 2016 version from Amazon. Anyone suggestions?

I can't tell you the difference as I don't have the 2016 version, but I bought the 2013 and I have noticed a huge improvement in logic games. So I wouldn't think you'd be at that big of a disadvantage, though I do not know for sure.