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pbuk

Science Advisor

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That is a good high school question.View attachment 256406

High Schoolers onlyAnswer the following questions:

11.

a.)How many knights can you place on a ##n\times m## chessboard such that no two attack each other?

Surely this one is a bit too hard though?b.)In how many different ways can eight queens be placed on a chessboard, such that no queen threatens another? Two solutions are not different, if they can be achieved by a rotation or by mirroring of the board.