Kriegspiel is a chess variant where each player can see their own pieces, but not those of their opponent.
See https://en.wikipedia.org/wiki/Kriegspiel_(chess)
Install the stack
build tool (see http://haskellstack.org) and run stack install
in checkout directory
kriegspiel - play Kriegspiel or Chess.
Usage: kriegspiel [--hotseat] ([-c|--chess] | [-k|--kriegspiel])
Play Kriegspiel or Chess. https://en.wikipedia.org/wiki/Kriegspiel_(chess)
Available options:
--hotseat play in hot-seat mode (2 players sharing same screen)
-c,--chess Standard Chess (default)
-k,--kriegspiel Kriegspiel
-h,--help Show this help text