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	<description>Amusement and the Art of Mathematics</description>
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		<title>Yooklid</title>
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		<title>Blue-Empty Graph</title>
		<link>http://yooklid.wordpress.com/2010/12/26/blue-empty-graph/</link>
		<comments>http://yooklid.wordpress.com/2010/12/26/blue-empty-graph/#comments</comments>
		<pubDate>Sun, 26 Dec 2010 05:46:18 +0000</pubDate>
		<dc:creator>prathap sridharan</dc:creator>
				<category><![CDATA[riddles]]></category>

		<guid isPermaLink="false">http://yooklid.wordpress.com/?p=132</guid>
		<description><![CDATA[I was going to post this puzzle tomorrow but I realized that leaving the inquisitive readers with just a solution to Langford&#8217;s problem would be very ill mannered. So here we go again! This one, like many others I will write about, comes from the late Martin Gardner&#8217;s prolific work as a puzzle writer: Six [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=132&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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			<media:title type="html">prathap sridharan</media:title>
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		<title>SOLUTION &#8211; Langford&#8217;s Problem</title>
		<link>http://yooklid.wordpress.com/2010/12/26/solution-langfords-problem/</link>
		<comments>http://yooklid.wordpress.com/2010/12/26/solution-langfords-problem/#comments</comments>
		<pubDate>Sun, 26 Dec 2010 05:28:50 +0000</pubDate>
		<dc:creator>prathap sridharan</dc:creator>
				<category><![CDATA[riddles]]></category>
		<category><![CDATA[solutions]]></category>

		<guid isPermaLink="false">http://yooklid.wordpress.com/?p=128</guid>
		<description><![CDATA[Merry Christmas everybody! On 12/23/2010 I wrote about a curious puzzle called Langford&#8217;s Problem. I asked the reader to try to arrange four pairs of different colored blocks such that one block was between a pair of blocks of color A, two blocks between a pair of blocks of color B, three blocks between a [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=128&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>1</slash:comments>
	
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			<media:title type="html">prathap sridharan</media:title>
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		<title>Langford&#8217;s Problem</title>
		<link>http://yooklid.wordpress.com/2010/12/23/langfords-problem/</link>
		<comments>http://yooklid.wordpress.com/2010/12/23/langfords-problem/#comments</comments>
		<pubDate>Thu, 23 Dec 2010 10:10:41 +0000</pubDate>
		<dc:creator>prathap sridharan</dc:creator>
				<category><![CDATA[riddles]]></category>

		<guid isPermaLink="false">http://yooklid.com/?p=124</guid>
		<description><![CDATA[C. Dudley Langford, a Scottish mathematician, was watching his little boy play with colored blocks. There were two blocks of each color, and the child had piled six of them in a column in such a way that one block was between the red pair, two blocks were between the blue pair, and three were [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=124&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">prathap sridharan</media:title>
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		<title>Cartoon Corner</title>
		<link>http://yooklid.wordpress.com/2010/01/19/cartoon-corner/</link>
		<comments>http://yooklid.wordpress.com/2010/01/19/cartoon-corner/#comments</comments>
		<pubDate>Tue, 19 Jan 2010 04:38:22 +0000</pubDate>
		<dc:creator>kausikan</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Cartoon]]></category>
		<category><![CDATA[humor]]></category>
		<category><![CDATA[Math Education]]></category>

		<guid isPermaLink="false">http://blog.yooklid.com/?p=119</guid>
		<description><![CDATA[The cartoon is by Randy Glasbergen.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=119&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>1</slash:comments>
	
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			<media:title type="html">the sickest cow</media:title>
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			<media:title type="html">ed20</media:title>
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		<title>SOLUTION &#8211; Polyominoes</title>
		<link>http://yooklid.wordpress.com/2010/01/15/solution-polyominoes/</link>
		<comments>http://yooklid.wordpress.com/2010/01/15/solution-polyominoes/#comments</comments>
		<pubDate>Fri, 15 Jan 2010 03:00:46 +0000</pubDate>
		<dc:creator>prathap sridharan</dc:creator>
				<category><![CDATA[solutions]]></category>

		<guid isPermaLink="false">http://blog.yooklid.com/?p=106</guid>
		<description><![CDATA[On Jan 11 I briefly introduced Polyominoes and posed some interesting problems to delight our readers. If you haven&#8217;t read the post introducing this fantastic topic, I highly encourage you to do so before proceeding to read the solutions to the puzzles presented in that post. In the first problem it was asked if a [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=106&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">prathap sridharan</media:title>
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		<item>
		<title>An Introduction to Polyominoes</title>
		<link>http://yooklid.wordpress.com/2010/01/11/an-introduction-to-polyominoes/</link>
		<comments>http://yooklid.wordpress.com/2010/01/11/an-introduction-to-polyominoes/#comments</comments>
		<pubDate>Mon, 11 Jan 2010 08:39:33 +0000</pubDate>
		<dc:creator>prathap sridharan</dc:creator>
				<category><![CDATA[riddles]]></category>

		<guid isPermaLink="false">http://blog.yooklid.com/?p=96</guid>
		<description><![CDATA[In this post I will briefly introduce the fascinating subject of Polyominoes and pose some elementary problems that are sure to puzzle the incredible pattern matching machines in your skulls. Those of you who are familiar with Polyominoes might know that they inspired the very popular video game Tetris. Polyominoes are shapes made by connecting [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=96&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">prathap sridharan</media:title>
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			<media:title type="html">Simple Polyominoes</media:title>
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			<media:title type="html">Pentominoes</media:title>
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			<media:title type="html">mutiliated-chessboard</media:title>
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		<title>Help the merchant&#8217;s wife!</title>
		<link>http://yooklid.wordpress.com/2009/12/25/help-the-merchants-wife/</link>
		<comments>http://yooklid.wordpress.com/2009/12/25/help-the-merchants-wife/#comments</comments>
		<pubDate>Fri, 25 Dec 2009 09:11:40 +0000</pubDate>
		<dc:creator>kausikan</dc:creator>
				<category><![CDATA[education]]></category>
		<category><![CDATA[riddles]]></category>

		<guid isPermaLink="false">http://blog.yooklid.com/?p=90</guid>
		<description><![CDATA[A rich merchant had collected many gold coins. He did not want anybody to know about them. One day, his wife asked,“How many gold coins do we have?” After pausing a moment, he replied, “Well! If I divide the coins into two unequal numbers, then 36 times the difference between the two numbers equals the [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=90&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://yooklid.wordpress.com/2009/12/25/help-the-merchants-wife/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
	
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			<media:title type="html">the sickest cow</media:title>
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			<media:title type="html">merchant_and_his_wife</media:title>
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		<title>Easy Picking</title>
		<link>http://yooklid.wordpress.com/2009/12/13/easy-picking/</link>
		<comments>http://yooklid.wordpress.com/2009/12/13/easy-picking/#comments</comments>
		<pubDate>Sun, 13 Dec 2009 20:55:32 +0000</pubDate>
		<dc:creator>kausikan</dc:creator>
				<category><![CDATA[riddles]]></category>

		<guid isPermaLink="false">http://blog.yooklid.com/?p=78</guid>
		<description><![CDATA[In a certain bank the positions of the cashier, manager, and tellers are held by Brown, Jones and Smith, though not necessarily respectively. The teller, who was an only child, earns the least. Smith, who married Brown&#8217;s sister, earns more than the manager. What position does each man fill?<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=78&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>3</slash:comments>
	
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			<media:title type="html">the sickest cow</media:title>
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		<title>Ten Commandments of Mathematics</title>
		<link>http://yooklid.wordpress.com/2009/12/13/ten-commandments-of-mathematics/</link>
		<comments>http://yooklid.wordpress.com/2009/12/13/ten-commandments-of-mathematics/#comments</comments>
		<pubDate>Sun, 13 Dec 2009 20:51:31 +0000</pubDate>
		<dc:creator>kausikan</dc:creator>
				<category><![CDATA[education]]></category>
		<category><![CDATA[humor]]></category>
		<category><![CDATA[inspiration]]></category>

		<guid isPermaLink="false">http://blog.yooklid.com/?p=80</guid>
		<description><![CDATA[King James Version 1. Thou shalt read Thy problem. 2. Whatsoever Thou doest to one side of ye equation, Do ye also to the other. 3. Thou must use Thy &#8220;Common Sense&#8221;, else Thou wilt have flagpoles 9,000 feet in height, yea &#8230; even fathers younger than sons. 4. Thou shalt ignore the teachings of [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=80&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://yooklid.wordpress.com/2009/12/13/ten-commandments-of-mathematics/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
		<media:content url="http://1.gravatar.com/avatar/9b28e1ca6571b085bddcd087cb0ff6b1?s=96&#38;d=identicon&#38;r=G" medium="image">
			<media:title type="html">the sickest cow</media:title>
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			<media:title type="html">review_basics_ten_commandments_235585</media:title>
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		<title>SOLUTION &#8211; Military Tactics Puzzle</title>
		<link>http://yooklid.wordpress.com/2009/12/10/solution-military-tactics-puzzle/</link>
		<comments>http://yooklid.wordpress.com/2009/12/10/solution-military-tactics-puzzle/#comments</comments>
		<pubDate>Thu, 10 Dec 2009 08:56:36 +0000</pubDate>
		<dc:creator>prathap sridharan</dc:creator>
				<category><![CDATA[solutions]]></category>

		<guid isPermaLink="false">http://blog.yooklid.com/?p=59</guid>
		<description><![CDATA[The solution described below pertains to the Military Tactics Puzzle, which I wrote about on 12/07/2009. If you have not attempted to match your wits against this puzzle, I highly encourage you to stop reading this post any further and attempting the puzzle. The puzzle asked to show how a rook at the initial starting point of H6 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=yooklid.wordpress.com&amp;blog=10556213&amp;post=59&amp;subd=yooklid&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://yooklid.wordpress.com/2009/12/10/solution-military-tactics-puzzle/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
	
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			<media:title type="html">prathap sridharan</media:title>
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			<media:title type="html">Chessboard_with_path</media:title>
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