Kaiser is a Canadian trick-taking card game and is played by four players in partnerships. The game is played with an undersized deck of 32 cards, and can be played with a regular deck of cards (commercial decks are available).The game has been around for at least 40 years and it is believed that it has its origins in the Ukrainian culture, possibly being brought over by immigrants to Canada.(Kaiser has absolutely no connection with the ancient Swiss card game called Kaiserspiel or Kaiserjass.) - BoardGameGeek