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- 19:18, 23 November 2009 (diff | hist) . . (+57) . . N 1993 AJHSME (Created page with 'Problem: A checkerboard consits of one-inch squares. A s')
- 12:21, 23 November 2009 (diff | hist) . . (-5) . . 2002 AMC 10B Problems/Problem 9 (→Solution)