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3 Priests and 3 devils Puzzle | Puzzles for Interview - Interview Preparation PDF Download

Introduction

The 3 Priests and 3 Devils Puzzle is a classic problem that challenges your critical thinking skills. The objective is to get all the priests and devils safely across the river using a boat that can only carry two people at a time.

Problem

There are 3 devils and 3 priests who need to cross a river using a boat. The boat can only carry two people at a time. If there are more devils than priests on either side of the river, the devils will eat the priests.

Solution

To solve the puzzle and get all the priests and devils safely to the other side of the river, follow these six steps:

  • Step 1: Firstly, one devil and one priest will go to the other side. The devil will stay on the other side while the priest will come back with the boat.
  • Step 2: Next, the remaining two devils will go to the other side. One devil will stay on the other side while one devil will come back again with the boat. At this point, two devils are on the other side of the river, and three priests and one devil are on one side of the river.
  • Step 3: Now, two priests will go. One priest will stay on the other side while one priest and one devil come back with the boat. This leaves three priests and one devil on one side of the river, and two devils on the other.
  • Step 4: The remaining two priests will now go to the other side of the river. This leaves three priests and one devil on one side, and two devils on the other. One devil will come back with the boat.
  • Step 5: Two devils will go to the other side of the river. One devil will stay, and one devil will come back with the boat. 
  • Step 6: Finally, the remaining two devils will come to the other side of the river. Now all three priests and three devils have arrived safely on the other side of the river.

Conclusion

The 3 Priests and 3 Devils Puzzle is a challenging problem that requires critical thinking and problem-solving skills. By following the above six steps, you can safely get all the priests and devils to the other side of the river.

The document 3 Priests and 3 devils Puzzle | Puzzles for Interview - Interview Preparation is a part of the Interview Preparation Course Puzzles for Interview.
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