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SELECT * FROM `Item` LEFT JOIN `IndexEntry` USING (ItemID) WHERE `Type` = 'Contest' AND FIND_IN_SET(:'Singleplayer',`Categories`) AND `IsHidden` = 0 AND `Item`.`IsDeleted` = 0 AND `Language` = 'English' AND `LinkText` LIKE 'C%' ORDER BY `LinkText`, `Item`.`Summary` ASC LIMIT 500 OFFSET 0
- Contest: the 9 Queens Problem. Put 9 queens and 1 or 2 pawns such that queens do not see each other. Send your solution before Feb 29, and win a book! Author: Hans L. Bodlaender.
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