Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

And here are the last few puzzles I have for the time being:

Count the Shapes

Broken Stick

Missing Number 2

Touching Marbles

Cut to the Average

Placing Sheets

What is the Pattern

Cards in a Square

Cut the Cross

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,525

Hi MIF

I found these slightly harder than the ones before, but still very nice.

For the "What is the pattern" puzzle it couldn't actually be stated that Stephen is the author. It is a well and long known one. Look-and-say Sequence

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

Hi MathsIsFun;

Very nice puzzles. My favorite is "broken stick."

"Cards in a square," is a mutually orthogonal Latin square. These are pretty widely known with many open questions.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

anonimnystefy wrote:

For the "What is the pattern" puzzle it couldn't actually be stated that Stephen is the author. It is a well and long known one. Look-and-say Sequence

Good point. I have just put him as Author for all these new puzzles, there may be others that are mis-cited.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,525

Most of the others look original.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

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**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,532

Nice puzzles. Love broken sticks.

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**jennylee1203****Member**- Registered: 2012-09-27
- Posts: 11

Very nice puzzles.

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