Titanic

Move your lifeboats to rescue all the passengers from the water. Challenge is solved when each passenger is safely in a lifeboat.

• Each lifeboat may move forwards, backward, or drift from side to side. 
• Lifeboats may not turn or move diagonally.
• When anyone is close enough to a lifeboat to climb on board, the lifeboat must pick them up, even if it makes more sense to collect another passenger first.
• A lifeboat with a spare seat can never pass a person in the water without saving them. However, the passengers can not access the lifeboats from the bow.
• Full lifeboats remain anchored to the spot (because you can't save anyone else with a boat that has no more seats free).

At the beginning of the game, there are many people in the water, making it difficult for you to maneuver the boats. But once you have picked up a few people and have more space, your movement is restricted by the full lifeboats. This makes Titanic a constantly changing maze of people and boats.