Lanterloo or Loo is a 17th-century trick taking game of the trump family of which many varieties are recorded. It belongs to a line of card games whose members include Nap, Euchre, Rams, Hombre, and Maw. It is considered a modification of the game of "All Fours", another English game possibly of Dutch origin, in which the players replenish their hands after each round by drawing each fresh new cards from the pack.

Euchre or eucre is a trick-taking card game commonly played in Australia, Canada, Great Britain, New Zealand, and the Midwestern United States. It is played with a deck of 24, 25, 28, or 32 standard playing cards. There are normally four players, two on each team, although there are variations for two to nine players.