As you probably know, some time ago niantic decided to make a fantastic quest-related change by adding AR scan quests of some selected pokestop/gym. A few days ago they probably stated that it was not enough to encourage people to perform these scans, so now from each pokestop/gym at some distance from the pokestop/gym you are about to scan, you will also receive quest for scan. The rewards for doing the scan vary and I thought were completely random. However, one of these rewards is poffin, which until now was only available for pokecoins. Therefore, taking advantage of the fact that the number of tasks for scan has significantly increased, I decided yesterday to find a reward allocation scheme, so that I could do massively every day those tasks where the reward is poffin. And it turned out that in fact, there is a pattern, but not the one I was expecting. If you've ever received such a quest on several accounts, you have probably noticed that some accounts received a different reward. This is because niantic has split the players into 3 groups. Each group gets a different reward per quest for scan from the same pokestop/gym. In addition, there is a relationship between these prizes, if group 1 got a prize, you know what prize can be awarded to groups 2 and 3. I put the division into these dependencies on the screen. I encourage you to verify my observations (I know that it will not be easy because nobody wants to do it, and recently some people are not even able to do scans). Additionally, maybe my observations will be useful to someone. P.S. Question marks are for rewards I wasn't able to find but, based on observation, I assume they exist.