I think this is a great idea, just needs to be fixed a bit and made more suitable e.g. no loopholes, etc.
Honestly combining different variants is quite exciting and fun to do, especially as a change to the more popular variants that we have right now.
Hello, everyone!
Right now I'll present a very weird idea. I understand, that you might hate me for it, but still, please, I am just trying to create something, that will make the game more interesting - new objects, that could be useful for custom player positions, and even some variants!
These new objects can be anything, that has some interesting (for most of players) mechanics. I have a few examples of what it can be (but even though, it can be anything):
[WARNING! Weird ideas ahead]
A "generator" object, that would spawn pieces in squares around it, like spawner in Minecraft. Pieces can "capture" (break) it, and the creation process will stop.
LIGHTHOUSE (or something). It can belong to a color, for example be white or black. In fog of war, it shows some area in unknown (for me) way.
Some exploding object like a bomb or something, that will cause an atomic chess explosion, when a piece captures it.