Gordon Shumway: The ability to leave an empty spot is identical to adding another colour.
The general formula for the number of codes with N spots and C colours is CN for regular logic; for unique logic, the formula is C!/(C-N)!, assuming there are at least as many colours as there are spots (otherwise, you wouldn't have any possible codes).
AbigailII: So Unique Logik with two additional colors seems to be roughly in the same range of complexity as our current Logik - I think I'd like it :)
(peida) Kahe tunniga lõppev kiirpartii? Loo uus mäng, vali Aega mänguks 0 päeva / 1 tund, Boonus 0 päeva / 0 tundi ja Limiit 0 päeva / 1 tund. (TeamBundy) (näita kõiki vihjeid)