This crate implements core rules of contract bridge game (currently only playing phase).
With feature `amfiteatr` it provides interfaces compatible with [`amfiteatr`](https://github.com/moroviintaas/amfiteatr).
This is structure library, play simulation is implemented in
[`brydz_model`](https://github.com/moroviintaas/brydz_model).
This crate is published in current state to be some live example of `amfiteatr` concept.
Currently, it lacks documentation and is not stable.