i think what he is saying is how is the quality affected depending on the scale,
eg smaller scales mean better quality, than larger scales ?!?!?!

not to sure on the answer for this one, if your chessboard is a block within wed then quality will pretty much remain the same as the texture will not be stretched but instead more tiles of the same texture are automatically created.

However, as you are creating a chessboard, you will only want your texture to tile so many times so that you have the correct number of squares. therefore if you increase the scale of the level to compensate this you will have to increase the scale of the textures.

It basically depends on what you are doing. But you wont really want your chess board that big.

Hope this is of some help to you
Chris