Boy, and I thought syzygy was a WORD GAME!(I don't know how to do Italics)
In fact, I just found out what the original Syzygy game was, it's a bit like a word ladder but became unpopular because it was too complicated since each step has more than one letter in common. E.g: Man - Ice
man
perMANent
ENTice
ICE
...looks like I just answered my own question!
(Hididdley-ho Fish-bike by the way! )