Perhaps I wasn't holding it the right way, but it's something I'd want to play against friends in the future. Great stuff paladin314159!
Are you playing on your phone? I never really solved the UX problem on mobile because of the necessary speed/accuracy of moves. The original game was only on PC.
Not sure what happened to it but here is the wiki:
I also recreated this amazing game a while ago because I could not find it any longer: https://github.com/PetterS/realtimechess
There is an advantage of moving into check quite often. (A check with a rook across the board is quite weak)
Better to just play until the king is captured. (This is also how regular check is equivalently played)
Here's an idea:
Strong magnets (or just pieces of strongly ferromagnetic material) would be embedded at the bottom of the chess pieces; the board would use a strong solenoid on each square to fix the piece once it touches down. Alternatively, the bottom of each chess piece could have a hermetic seal ring, and there's a hole at the centre of each square that will create a vacuum to fix the chess piece in place.
The pieces could be (3D printed) in translucent material with an induction circuit with an LED inside. The LED will glow at various intensities to represent the cooldown.
Edit - something like what I suggested exists - https://en.m.wikipedia.org/wiki/Infinite_chess