Doppelkopf, sometimes abbreviated to Doko, is a trick-taking card game for four players.
A 40-card Doppelkopf pack (i.e., without nines).
German-suited (Altenburg) Doppelkopf pack (without blanks)
A "Doppelkopf" trick, two tens and two aces
Doppelkopf tournament under way
Clubs is one of the four playing card suits in the standard French-suited playing cards. The symbol was derived from that of the suit of Acorns in a German deck when French suits were invented, around
The four aces of a four-colour deck; here, Clubs are green.