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Academics, Computers, STEM.
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Try to solve problem 2 of IMO 2014 South Africa. Rooks on this board is peaceful if every row and every column contains exactly one rook. Find the greatest positive integer. Such that, for each peaceful configuration of. Rooks, there is a. Square which does not contain a rook on any of its. Try to solve the problem 1 of IMO 2014 South Africa. Proposed by Gerhard Wöginger, Austria.