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Why is there no response?

Posted by Amethyst2007 at 2007-08-05 16:05:02 on Problem 3319
In Reply To:Problem description Posted by:Amethyst2007 at 2007-08-05 14:29:13
> "You may or may not place one black rook on a white cell
> You may or may not place one white rook on a black cell"
> 
> What is that supposed to mean? "may or may not"?

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