Try your logic with classic classics from the 9th century

The puzzle across the river looks "easy", but "eating" is not easy.

Challenge yourself with the classic problem from the 9th century

We have been searching for solutions to problems through bridges. Today, let us come to another variation of this problem: the puzzle across the river.

Threads:

A farmer after he bought the market bought a wolf, a sheep and a bucket of cabbage. On the way home, the farmer had to cross a river.

The farmer had only one small boat and the boat could only carry with him and one of the three things he had bought: wolf, sheep, or cabbage. But the problem is, if wolves and sheep stay on the shore, wolves will eat lamb. And if sheep stay with cabbage, sheep will eat cabbage.

The farmer was very headache and didn't know how to solve it. Can you help me find the best shipping way? Brainstorm before looking at the solution below!

Now you know what to do?

Answers

The point of the problem is to determine what needs to be given first?

1. If you put the wolf first, the sheep will eat the cabbage.
2. If you put cabbage first, the sheep will become the prey of wolves.

So here you have the answer to bring something over first?It is that sheep.

After taking the sheep across the river and returning, we can freely choose what the next transport is: wolf or cabbage. However, if you choose cabbage, the sheep will eat cabbage. Similarly if you choose wolves, wolves will eat lamb.

So what to do?Quite simply, after we bring the cabbage, we bring "sheep" back.

Now the job is easy, right? We just need to bring the wolf, then return to the sheep to complete the mission.

Who put "wolf" across the river .

Take this note to complete the task.

About the puzzle across the river

Cross-river puzzle is a classic form of math puzzle math, used to test brain thinking ability. The oldest river puzzle versions have been found since the 9th century by Alcuin , an English scholar, with the most common puzzle being to take foxes, geese and bags across the river.

Today, to increase the difficulty, the puzzle across the river has many variations such as the problem of bringing people across the bridge. In addition, later problems also require bringing more objects to the river, or trying to add some facts such as a boat that can carry 3, but only move when there are at least 2 people sitting on .