IQ Test: Get Everyone Across the River.

This one is from sometime last year, I think, but it's still fun: the goal of the game is to transport everyone across the river. The rules are:

1. The father cannot be left alone with any daughter (without the mother present).
2. The mother cannot be left alone with any son (without the father present).
3. The thief cannot be left alone with any family member (without the cop present).
4. Only the father, mother, and cop can operate the boat.

Sounds simple? Fair enough - let's see if you can beat the IQ game: http://freeweb.siol.net/danej/riverIQGame.swf [Flash] - press the round blue button to start.