For a description of the game, please refer to John McLeod's wonderful web site on card games: https://www.pagat.com/schafkopf/doko.html

All the card artwork used in this implementation is due to B. P. Grimaud, France (1898) and available in the public domain: https://commons.wikimedia.org/wiki/Category:Tarotnouveau-Grimaud-_1898