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No: 11       October 02, 2019


EIGHT QUEENS SIXTEEN SQUARES

EIGHT QUEENS SIXTEEN SQUARES

Place eight queens on a 4x4 chessboard so that there are no more than two queens in any row, column, or diagonal (2, 3, or 4 squares) lines. How many different ways can this be done?

Note: Symmetrical solutions will be counted separately.

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