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	<title>Kai Witte's Blog &#187; tough</title>
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	<description>Brief articles by Kai Witte</description>
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		<title>Chess puzzle #11 (tough)</title>
		<link>http://witte-consulting.com/blog/chess-puzzle-11-tough/</link>
		<comments>http://witte-consulting.com/blog/chess-puzzle-11-tough/#comments</comments>
		<pubDate>Sat, 28 Jun 2008 18:04:03 +0000</pubDate>
		<dc:creator>Kai Witte</dc:creator>
				<category><![CDATA[Chess]]></category>
		<category><![CDATA[hard]]></category>
		<category><![CDATA[puzzle]]></category>
		<category><![CDATA[tough]]></category>

		<guid isPermaLink="false">http://witte-consulting.com/blog/?p=8</guid>
		<description><![CDATA[I (black) made a mistake. Fortunately my opponent did not see it, and the game ended in a draw. Do you? White to move and win material. It is tough! Need help? Tactical concepts needed for the solution: show The tactical elements which are used directly or as a thread are: Fork, pike, discovered attack, [...]]]></description>
			<content:encoded><![CDATA[<p>I (black) made a mistake. Fortunately my opponent did not see it, and the game ended in a draw. Do you?</p>
<p><a href="http://kaiwitte.org/tmp/chess11.png" target="_self"><img style="vertical-align: middle;" src="http://kaiwitte.org/tmp/chess11.png" alt="Chess puzzle 11" width="443" height="360" /></a></p>
<p>White to move and win material. It is tough!</p>
<h3>Need help?</h3>
<p>Tactical concepts needed for the solution: <a class="spoiler_link_show" href="javascript:void(0)" onclick="wpSpoilerToggle(document.getElementById('id107805728'), this, 'show', 'hide')">show</a>
<span class="spoiler_div" id="id107805728" style="display:none">The tactical elements which are used directly or as a thread are: Fork, pike, discovered attack, &#8220;remove the defender&#8221;, pin. You have to think quite deep.</span>
</p>
<p>First move: <a class="spoiler_link_show" href="javascript:void(0)" onclick="wpSpoilerToggle(document.getElementById('id1700048360'), this, 'show', 'hide')">show</a>
<span class="spoiler_div" id="id1700048360" style="display:none">Nxf5. Black&#8217;s following response is more or less forced.</span>
</p>
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