Sure NP! Yikes I took another look and saw I had some chord names wrong (but fingerings right!) so made some edits. It makes a little more sense in terms of chords that would appear in key of B chord progression.

Once I figured out it was key of B I just tried out other I-IV-V and other chords and found the ones that fit. There are some odd ones thrown in there but hearing the melody note made it guessable... It's interesting how the Abm -> B6/7 mirrors the initial B chord riff.

Some people do crossword puzzles, I like to figure stuff like this out!

Cheers! - Ross