I had some trouble with this puzzle until I realized there was an unstated assumption: that at least one day of rest exists between any event and the next one. (If that wasn't true there'd be a lot of potential solutions!)
I remembered it said that for last year's but it doesn't say it this time. If that's supposed to be part of the rules could it be added to the description?
ahh yes, I can add that detail. I didn't add it this year because it is implied (if you add an event day between two events...then it becomes one big event). But it seems that explicitly stating that would help out!
I wish it were true for real life. "Oh, sorry, I can't go to your party this Wednesday because I already have an event planned for Thursday, and I always need a rest day in between events"
