Skat is the German national card game, being invented in the town of Altenburg around 1810. It is distinctive in being a three handed game, however it is often played by four people, with the dealer sitting out each round.
The three active players will be dealt 10 cards each, and the remaining two cards form the skat, giving the game its name.
It is a trick taking game, but differs from most other trick taking games in that the number of tricks taken does not determine the winner. Indeed it is possible to win the hand taking only two of the possible ten tricks.