Quarto (German)

Quarto is an abstract classic. Players have 16 characters, each with four characteristics: large/small, round/square, light/dark, and indented/non-indented. When it is your turn, you choose an opponent's piece and give it to your opponent. He places them on an empty space on the game board. The first player to form a line of four figures of the same property wins.

Also available as a handy mini version for travelling.