Wave to be divergent

A while ago I made Wave transparent, which was logical, and generally, good thing to do. Since then it occurred to me that Wave could be made divergent, i.e. any piece instead of activating Wave could choose to continue moving, but optionally change its course.

This opens quite a few new tactical possibilities, and makes Wave way more useful, since only two pieces are enough for a meaningful diversion. For a cascade to be immediately meaningful, usually three pieces are needed: activator, Wave, and activated piece. In a cascade where only Wave has been moved along with initiating piece, beside repositioning and maybe some latent threat, Wave isn't immediately useful, and momentum gathered by activator is lost. Only downside that I could see with divergent Wave is that it would be even more valuable, as it wasn't already too much so.

While I do like the idea, there are a few open questions, and, at the moment, I can't really make a reasonable case for one choice over the other. A few issues that comes to mind: should initiating piece after diverging be limited by momentum; should piece upon encountering Wave be always diverging, even if it does not change its direction (thus forfeiting transparency for diverging); should piece be allowed to diverge from opponent's Wave, or only own; what about own Wave diverging from opponent's Wave; should piece be allowed more than one diversion in the same ply, (move?); should piece also diverge from own Starchild, (opponent's?); and so on.

There are quite a few choices with this seemingly simple change to gameplay. Since I can't decide right now which set of options is the best, I made second best thing, wrote blog entry about it. I hope to resolve those issues soon, and then it'll make it into the book.