[Void_]

Here's something that easily woke me up after a day of coding:

It's a card game called SET - here are the rules: http://www.setgame.com/set/rules_set.htm

It's for 2+ players, and it's all about how quickly you can find the set in 12 cards on the table. Finding set is not so easy, read about it in the rules.

[Brashman]

It can be fun single player too. There's no concept on "winning" then, but it's still challenging to find sets.