293.--THE CHINESE CHESSBOARD.

Into how large a number of different pieces may the chessboard be cut

(by cuts along the lines only), no two pieces being exactly alike?

Remember that the arrangement of black and white constitutes a

difference. Thus, a single black square will be different from a single

white square, a row of three containing two white squares will differ

from a row of three containing two black, and so on. If two pieces

cannot be placed on the table so as to be exactly alike, they count as

different. And as the back of the board is plain, the pieces cannot be

turned over.

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