- 10 Oct '03 08:43

1^2 + 2^2 + 3^2 + 4^2 + 5^2 + 6^2 + 7^2 + 8^2*Originally posted by Lord Burn***How many different spuares are there on a 8x8 checherboard?**

You can find more than 64 I'll give you that much.

Explain your answer and how you did it.

= 204

[ = 8*(2*8+1)*(8+1)/6 from the formula for the sum of consecutive squares]

We get this because there is one way of placing an 8*8 square on the chessboard, four ways of placing a 7*7 square etc. - 10 Oct '03 08:54

Here's another one*Originally posted by Lord Burn***How many different spuares are there on a 8x8 checherboard?**

You can find more than 64 I'll give you that much.

Explain your answer and how you did it.

You have 3d chessboard of size N^3

How many different vertical and horzontal squares are there on this chessboard?