[Skybird]

This app from the applab (=early access, in development) is chess in mixed reality squared, so to speak.

Look closely. You can have both colours' pieces fully virtual. But then you can also have your own real pieces on a real board, the Quest then will recognise if you move these - and project virtual pieces of your human or AI opponent onto that virtuaol board. That way, you have full haptic feedback from playing with real pieces on a real board.

It is a bit like with VR apps for piano playing where key marking get projected onto the real, material keys.

Nice! Half material, half virtual. But note that the feature currently is experimental and does not yet work reliably.