Interesting idea for a 3D chess-like.
This definitely needs an enemy bot to play it. I'm not sure if the room selection is meant for multiplayer. I tried a room where it said 2/2, but I was able to move both colors as usual.
While moving triangles and circles I found a bug where the movement animation kept appearing over and over, sometimes the bug stops when selecting other piece, but other times it doesn't.
I'm adding a video with it.