# Pigs and Hens River Crossing Puzzle | MindYourLogic River Crossing Puzzle

In this challenging river crossing puzzle, you must help two pigs and two hens cross a river using an automated boat. The boat starts automatically once someone is aboard but can only carry two animals at a time. However, there’s a catch the two pigs cannot board the boat together, as their combined weight would sink it.

Objective: Get all four animals across the river in the fewest possible trips.

Solution
To solve this puzzle efficiently, follow these logical steps:

First Trip: Send one pig and one hen across the river.

State: 1 pig and 1 hen on the other side, 1 pig and 1 hen on the starting side.
Return Trip: The hen returns with the boat.

State: 1 pig on the other side, 1 pig and 2 hens on the starting side.
Second Trip: Send the second pig and the second hen across.

State: 2 pigs on the other side, 2 hens on the starting side.
Return Trip: The hen returns with the boat.

State: 2 pigs on the other side, 1 hen on each side.
Final Trip: Both hens cross together.

State: All animals are now on the other side.

Conclusion
In just three trips, with careful planning, you’ve successfully transported all the animals across the river. This puzzle teaches the importance of strategic thinking and the ability to work within constraints to achieve the best possible outcome.

## river crossing puzzles

Anshul Khandelwal 2023-09-12

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