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 :)
(do skréše) Chce se tě zrovna valet rechlé špil, keré zaročeně skonči v pruběho dvó hodin? Vetvoř nabidko ke špilo a zadé tam Čas na špil: 0 dni 1 hodina, Extrovnica: 0 dni 0 hodin, Limit: 0 dni 1 hodina. (TeamBundy) (okázat šecke vechetávke)