Nim chess 2 is now available in version 0.3. [https://github.com/ngtk3/nim-chess2](https://github.com/ngtk3/nim-chess2)
Memory usage is reduced by a factor of two, so that playing on a laptop with only 2 GB is really no problem. And endgame is improved, even king vs king/bishop/knight should work fine and fast now. We need at least latest Nim v 0.15.2 because proc clear of module tables is used now. Not much tested yet.