Students and their parents take part in a chess contest during an open day at a primary school in 沈阳 (Shěnyáng), 辽宁省 (Liáoníng province), China. Photo: AFP/Getty Images.
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Showing posts with label Scholastic Chess Tournaments. Show all posts
Showing posts with label Scholastic Chess Tournaments. Show all posts
Friday, April 7, 2017
射影平面 (Projective plane)
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