Three Humans and Two Monkeys | MindYourLogic River Crossing Puzzle

In the "Three Humans and Two Monkeys" puzzle, you need to figure out how to get three people and two monkeys across a river. The crossing has some tricky rules and challenges, so you'll need to plan carefully to make sure everyone gets to the other side safely. Can you solve this fun and classic puzzle?

Rules:
1. Only humans and the big monkey can row the boat.
2. At all times, the number of humans on either side of the river must be greater than or equal to the number of monkeys on that side. Otherwise, the monkeys will overpower and eat the humans!
3. The boat can carry a maximum of two passengers (either monkeys or humans).
4. Monkeys can jump out of the boat when it's docked at either side of the river.

The goal is to get all three humans and both monkeys across the river safely.

Step-by-Step Solution:

1. Initial Setup
   Left Bank: 3 Humans, 1 Big Monkey, 2 Small Monkeys
   Right Bank: Empty

2. Step 1: Big Monkey and 1 Small Monkey Cross to the Right Bank
   Big Monkey rows the boat with 1 Small Monkey as a passenger.
   Left Bank: 3 Humans, 1 Small Monkey
   Right Bank: Big Monkey, 1 Small Monkey

3. Step 2: Big Monkey Returns Alone
   The Big Monkey rows back to the left bank alone.
   Left Bank: 3 Humans, 1 Big Monkey, 1 Small Monkey
   Right Bank: 1 Small Monkey

4. Step 3: 2 Humans Cross to the Right Bank
    Two humans row the boat to the right bank.
   Left Bank: 1 Human, 1 Big Monkey, 1 Small Monkey
   Right Bank: 2 Humans, 1 Small Monkey

5. Step 4: 1 Human Returns with the Small Monkey
    One human rows the boat back with the small monkey as a passenger.
    Left Bank: 2 Humans, 1 Big Monkey, 1 Small Monkey
   Right Bank: 1 Human, 1 Small Monkey

6. Step 5: Big Monkey and 1 Small Monkey Cross to the Right Bank Again
    The Big Monkey rows with the remaining small monkey.
   Left Bank: 2 Humans, 1 Big Monkey
   Right Bank: 2 Humans, 2 Small Monkeys

7. Step 6: Big Monkey Returns Alone
   The Big Monkey rows back alone.
   Left Bank: 2 Humans, 1 Big Monkey
   Right Bank: 2 Humans, 2 Small Monkeys

8. Step 7: 2 Humans Cross to the Right Bank
    The remaining 2 humans row to the right bank.
    Left Bank: 1 Big Monkey
    Right Bank: 3 Humans, 2 Small Monkeys

9. Step 8: Big Monkey Returns Alone
   The Big Monkey rows back alone to pick up the last monkey.
    Left Bank: 1 Big Monkey, 1 Small Monkey
    Right Bank: 3 Humans, 1 Small Monkey

10. Step 9: Big Monkey and Small Monkey Cross to the Right Bank
    The Big Monkey takes the last small monkey across.
     Left Bank: Empty
    Right Bank: 3 Humans, 1 Big Monkey, 2 Small Monkeys

All humans and monkeys have successfully crossed the river, and at no point were the humans outnumbered by the monkeys on either side of the river.

Conclusion:

This puzzle is an excellent exercise in logical thinking and planning. By carefully considering the conditions and constraints, we successfully managed to get all the humans and monkeys across the river without any of the humans being eaten!