# What Do You Know About Fibonacci Nim?

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Dating back to the year 1963, Fibonacci nim was modeled off the original Nim game by a prominent mathematician and made popular by another mathematician. This mathematical game is played by promising kids and maths enthusiasts, who alternately remove coins from a pile of coins. However, another game—with very similar rules—bears the same name, but this is the popular one.

• 1.

### How many people can play the Fibonacci nim at a time?

• A.

1

• B.

2

• C.

3

• D.

4

B. 2
Explanation
The correct answer is 2 because Fibonacci Nim is a two-player game. Each player takes turns removing one or more objects from a pile. The player who removes the last object wins. Therefore, only two people can play this game at a time, with each player taking turns to make their moves.

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• 2.

### How can you get the next sequence in a Fibonacci progression?

• A.

Addition of the two previous numbers

• B.

Subtraction of the two previous numbers

• C.

Multiplication of the two previous numbers

• D.

Division of the two previous numbers

A. Addition of the two previous numbers
Explanation
In a Fibonacci progression, each number is the sum of the two previous numbers. Therefore, to get the next sequence in the progression, you need to add the two previous numbers together.

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• 3.

### Who was the first person to observe the Fibonacci number?

• A.

Leonardo Pisano

• B.

Stephen Hawking

• C.

Giovanni Paganucci

• D.

Giovanni Fibonacci

A. Leonardo Pisano
Explanation
Leonardo Pisano, also known as Fibonacci, was the first person to observe the Fibonacci numbers. He introduced these numbers to the Western world in his book Liber Abaci, published in 1202. The Fibonacci sequence is a series of numbers in which each number is the sum of the two preceding ones, starting from 0 and 1. These numbers have numerous applications in mathematics, nature, and various other fields, making them an important discovery in the study of numbers.

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• 4.

### How many coins can the first player remove during the first play?

• A.

3

• B.

2

• C.

1

• D.

As many as he/she wants

C. 1
Explanation
The first player can remove only 1 coin during the first play. This is because the question asks for the number of coins the first player can remove "during the first play," implying that there is a restriction on the number of coins that can be removed initially. The other options, 3, 2, and "as many as he/she wants," do not align with this restriction and are therefore incorrect.

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• 5.

### Who is considered the winner of a Fibonacci nim? The player who picks the...

• A.

First coin

• B.

First 2 coins

• C.

Last coin

• D.

First 5 coins

• E.

Last 2 coins

C. Last coin
Explanation
In a Fibonacci nim game, the winner is considered to be the player who picks the last coin. This is because in Fibonacci nim, players take turns removing either one or two coins from a pile. The total number of coins in each turn is determined by the Fibonacci sequence, where each number is the sum of the two preceding numbers. The player who strategically plays and forces the opponent to pick the last coin wins the game. Therefore, the correct answer is "Last coin".

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• 6.

### What is the maximum number of coins a player can remove in each turn?

• A.

Twice the previous move

• B.

Three times the previous move

• C.

Half the previous move

• D.

Same as the previous move

A. Twice the previous move
Explanation
In each turn, the player can remove twice the number of coins as the previous move. This means that if the previous move was to remove 3 coins, the player can now remove 6 coins. This pattern continues, allowing the player to always remove twice the number of coins as the previous move.

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• 7.

### In a Fibonacci nim containing a total of ten coins, what will be the winning move for the first player?

• A.

Removing of 2 coins

• B.

Removing of 8 coins

• C.

Removing of 3 coins

• D.

Removing of 5 coins

A. Removing of 2 coins
Explanation
In a Fibonacci nim game, the winning move for the first player is to remove 2 coins. This is because in a Fibonacci nim game, the number of coins is represented in the Fibonacci sequence. In this case, there are 10 coins, which is the 7th number in the Fibonacci sequence. The strategy in Fibonacci nim is to always leave your opponent with a number of coins that is a Fibonacci number. By removing 2 coins, the first player leaves the second player with 8 coins, which is the 6th number in the Fibonacci sequence. This ensures that the second player will be in a losing position.

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• 8.

### Who developed the concept of the Fibonacci nim game?

• A.

Michael J. Whinihan

• B.

• C.

Leonardo da Vinci

• D.

Giovanni Fibonacci

A. Michael J. Whinihan
• 9.

### Which of these is not allowed in Fibonacci nim?

• A.

The second player can pick all the coins

• B.

A player can make a 0 move

• C.

Players alternate in picking coins

• D.

A maximum of two players can play

B. A player can make a 0 move
Explanation
In Fibonacci nim, players take turns removing one or more coins from a pile. The game ends when there are no more coins left. The objective is to avoid being the player to remove the last coin. In this game, a player can make a 0 move, meaning they can choose not to remove any coins on their turn. This is allowed in Fibonacci nim, so the correct answer is "A player can make a 0 move."

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• 10.

### What is the next sequence of this series: 1,1,2,3,5,8,13?

• A.

15

• B.

18

• C.

24

• D.

21

D. 21
Explanation
The given series is a Fibonacci sequence, where each number is the sum of the two preceding ones. Starting with 1 and 1, the next number is 2, then 3, 5, 8, and 13. Therefore, the next number in the sequence is the sum of 8 and 13, which is 21.

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