@Chip Veres @Magic Number are still active along with a few others, but for the most part it seems pretty dead. For you lurkers, how many of you are still working on this? If any of you care to comment, why don't you contribute to the forum or interact? I understand the drive to be the sole solver, but how's that really going? It seems like our fearless leader @DOLOS has gone pretty quiet over the last few weeks. Obviously real life takes precedence over this puzzle, but it'd be nice to see some more engagement. It's definitely hard to keep up motivation when the creator is absent and the site stagnates. Just wanted to share some of my thoughts and would be interested to hear from others! This is in no way an attack on individual users or Dolos. I'm just interested on the thoughts of active forum users, lurkers who visit the site regularly but don't contribute, and of course the creator himself.

I noticed that if you don't take into account the key "teeth" there are matching pairs of 7, 8, and 9 number pairs on the keys. I'm attaching a picture to explain it better. I haven't made any progress with this, but I hope it stimulates discussion or new ideas.