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Sudoku skills subject of mathematical presentation
Thursday, February 19, 2009

Sudoku strategyFREDONIA, N.Y.—February 12, 2009—Professor of Mathematical Sciences Joseph Straight and senior Mathematics/Childhood Education major Constance Hadley will be giving an informative presentation on Sudoku Puzzles on Feb. 26 at 7:30 p.m. in Fenton 168. Professor Straight and Hadley are interested in helping students develop their mathematical reasoning and communication skills.
To be included in the presentation is a brief history of the current puzzle craze, Sudoku, followed by a discussion of strategies to solve the puzzles. Professor Straight and Hadley will also share a system of notation that they have created so that players can communicate their moves to other players, or simply to keep a record of how a particular puzzle was solved.
The systematic notation took the two about a month to form. This notation has been explained by Professor Straight by saying “Imagine a class working on a Sudoku puzzle.  At one point, they appear to be stuck, but then Allison exclaims, ‘Eureka, NB(6,3), and then VB(6,2)!’  This is shorthand for ‘If we note the possible positions for the 6 in Block 3, then we can determine the position of the 6 in Block 2.’  The class may then proceed to check Allison's reasoning.”
Professor Straight hopes that “Advanced Sudoku players may be able to teach us a new trick or two and that would be great!”

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