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12 replies to this topic

#1 bonanova

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Posted 18 February 2008 - 10:16 AM

Warmup question: How many squares are there on a chessboard?

Edited:
Grand prize: How many rectangles are there on a chessboard?
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#2 Aatif

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Posted 18 February 2008 - 11:07 AM

How many squares are there on a chessboard?


I like this one for it makes my head dizzy when i try to visualize it but the answer is ...

Spoiler for Chessquare

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#3 brhan

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Posted 18 February 2008 - 06:19 PM

Spoiler for my solution

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#4 bonanova

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Posted 18 February 2008 - 06:33 PM

That was the warm-up. Now for the Grand prize.
[OP edited:]

How many rectangles are there on a chessboard?
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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#5 jremoletesilerio

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Posted 18 February 2008 - 07:15 PM

When you say rectangles, does that include squares also? Squares are rectangles... <_<
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#6 unreality

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Posted 18 February 2008 - 07:34 PM

Spoiler for answer


as for the rectangles, this includes squares, right?
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#7 jremoletesilerio

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Posted 18 February 2008 - 07:57 PM

Spoiler for Here is what I have...


Am I right? Did I make any mistakes or miss anything?
Note: I figured this out by myself, so please do not take any credit.
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#8 unreality

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Posted 18 February 2008 - 11:58 PM

Spoiler for my answer (1296)

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#9 brhan

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Posted 19 February 2008 - 12:23 AM

Spoiler for i think ...

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#10 Jkyle1980

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Posted 19 February 2008 - 01:19 AM

I just did a little research and agree.
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