While reading five years worth of chapters with next to no plot advancement whatsoever, a thought occurred to me: how much of this was really necessary? Some of the cases feature minor points that served as hints of the actual plot, but honestly, most of them just feel like filler. (On that note, I'm amazed Aoyama can keep coming up with all of these mysteries, especially since the average mystery is three chapters. Where does he get these ideas?) While technically all manga chapters count as "canon", we could cut out probably at least half of them and have the plot move much faster.
In short, which chapters/cases do you think are actually necessary to the plot? At the very least, I think the first few chapters would be canon, as would all of the chapters featuring appearances by or references to Hattori, Jodie, Akai, James Black, Eisuke, Subaru, Amuro, Sera, and anything related to the BO and FBI or Ai/Conan's pasts/families. What other individual cases would you guys count as canon? Some of mine:
Any other cases you think should make the cut for a "canon" list?