sudoku
http://plus.maths.org/content/taxonomy/term/764
enThe chaos of sudoku
http://plus.maths.org/content/chaos-sudoku
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<p>Struggling to solve today's sudoku? Is your tried and tested method hitting a brick wall and you feel like you are going around in circles? New research might make you feel a bit better: you might not necessarily be stuck... perhaps you are just in a patch of transient chaos on your way to the solution.</p>
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Struggling to solve today's sudoku? Is your tried and tested method hitting a brick wall and you feel like you are going around in circles? Then new research from <a href="http://www.nature.com/srep/2012/121011/srep00725/full/srep00725.html"><em>Nature Scientific Reports</em></a> might make you feel a bit better. You might not necessarily be stuck... perhaps you are just in a patch of transient chaos on your way to the solution.
</p><p><a href="http://plus.maths.org/content/chaos-sudoku" target="_blank">read more</a></p>http://plus.maths.org/content/chaos-sudoku#commentschaosP versus NPsudokuThu, 08 Nov 2012 10:21:07 +0000Rachel5809 at http://plus.maths.org/contentSolving sudokus - colouring by numbers
http://plus.maths.org/content/solving-sudokus-colouring-numbers
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Graph theory helps answer Sudoku questions </div>
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<div class="pub_date">20/06/2007</div>
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<p>Have you ever been trying to solve a Sudoku puzzle and been gripped by a sinking feeling that maybe you were stuck with a lemon? That maybe the puzzle you are struggling with actually has no solution at all? And, if you do find a solution, how can you be sure it's the only one? What if half an hour ago you had written 5 instead of 3 — would you then have gone down a path to a completely
different solution?</p><p><a href="http://plus.maths.org/content/solving-sudokus-colouring-numbers" target="_blank">read more</a></p>http://plus.maths.org/content/solving-sudokus-colouring-numbers#commentsgraph theorypuzzlesudokuTue, 19 Jun 2007 23:00:00 +0000plusadmin2552 at http://plus.maths.org/contentForget Sudoku and smile for the camera
http://plus.maths.org/content/forget-sudoku-and-smile-camera
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An algorithm for solving Sudoku puzzles from an unexpected source </div>
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<div class="pub_date">28/03/2006</div>
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<p>It's often claimed that solutions to difficult problems can come to you when you're thinking of something entirely different. Physicist <a href="http://people.ccmr.cornell.edu/~veit/">Veit Elser</a> from Cornell University is a case in point: he accidentally found a recipe for solving Sudoku puzzles while trying to take pictures of really small things.<p><a href="http://plus.maths.org/content/forget-sudoku-and-smile-camera" target="_blank">read more</a></p>http://plus.maths.org/content/forget-sudoku-and-smile-camera#commentsFourier analysissudokuMon, 27 Mar 2006 23:00:00 +0000plusadmin2641 at http://plus.maths.org/contentAnything but square: from magic squares to Sudoku
http://plus.maths.org/content/anything-square-magic-squares-sudoku
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Hardeep Aiden </div>
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Get on a commuter train these days and you can virtually see people's brains crunching away at filling the numbers from 1 to 9 into a square grid. As the Sudoku craze shows no sign of slowing, <b>Hardeep Aiden</b> investigates its relatives and predecessors. </div>
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<div class="pub_date">March 2006</div>
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<h3>What is a magic square?</h3>
<p>There is an ancient Chinese legend that goes something like this. Some three thousand years ago, a great flood happened in China. In order to calm the vexed river god, the people made an offering to the river Lo, but he could not be appeased. Each time they made an offering, a turtle would appear from the river. One day a boy noticed marks on the back of the turtle that seemed to represent the
numbers 1 to 9.<p><a href="http://plus.maths.org/content/anything-square-magic-squares-sudoku" target="_blank">read more</a></p>http://plus.maths.org/content/anything-square-magic-squares-sudoku#comments38latin squaremagic squaresudokuWed, 01 Mar 2006 00:00:00 +0000plusadmin2279 at http://plus.maths.org/content