I've been working on a new variant toolkit & platform called Hyperchess: https://hyperchess.gg

It's weirder than Pychess, but closer to traditional chess than Titan's Battalion. It includes an editor (in alpha) for creating new variants, and some interesting custom pieces that you wont find anywhere else.

Video overview: https://vimeo.com/1125950851

Feedback welcome but this is my first time posting the project publicly, so please be nice.

Sadly, this looks like it will only work in the acute stage. Perhaps they should have used the word "rescues" as opposed to "regenerates".

Edit: The paper fully claims regeneration, not just preservation, via TrkB receptor signaling as well as synaptic recovery.

https://www.mdpi.com/1999-4923/15/2/493