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<title>Update Information: November 15, 2010</title>
<content:encoded><![CDATA[<p><em>Posting by Ron, Tuesday, November 16, 2010, 00:59:</em></p><p><p><span style="font-size:large;"><strong>Engine Updates</strong></span></p>
<p><strong><span style="color:#090;">Deuterium 10.01.27.213 (WB)</span></strong><br />
Win32<br />
&quot;probably an increase of 25-50 points compared to previous version&quot;<br />
- modify evaluation codes on piece mobilities - do not inlude x-rays<br />
- modify rook evaluation on open files and half open files<br />
- tune rook at 7th and 8th rank bonus score in evaluation<br />
- added queen and rook piece square tables<br />
- King piece square tables now use 2 tables, 1 for opening and for ending<br />
- save null move search info to transposition table<br />
- added win evaluation pruning in search()<br />
- added loss evaluation pruning with qsearch verification in search()<br />
- modify see() routine - calculate sliders that might pin pawn attackers<br />
- added futility pruning in qsearch()<br />
- updated big books<br />
- fixed minor bugs everywhere, improve code readability<br />
- added option &quot;Gui&quot; in deuterium.ini file so that Deuterium will know which Gui it is run; this also will fix analyze mode under Arena gui, when you set Gui Arena in deuterium.ini file<br />
- added check evasion routine to handle move generation when side is in check<br />
- added non capture check move routine for qsearch()<br />
- modify null move conditions - do not do null move if previous move is a hash move, or mate killer move, also modify depth reduction R<br />
- improve probing of bitbase, use piece list instead of scanning the whole board to locate pieces<br />
<a href="http://sites.google.com/site/deuteriumengine/">http://sites.google.com/site/deuteriumengine/</a> (new homepage)</p>
<p><strong><span style="color:#555;">Redqueen 0.7.5 (UCI)</span></strong><br />
1 commit(s) to the C++ source code (commits= 473), no new build<br />
<a href="http://sourceforge.net/projects/redqueenchess">http://sourceforge.net/projects/redqueenchess</a></p>
<p><span style="font-size:large;"><strong>Chess News</strong></span></p>
<p><strong><span style="color:#555;">SCID</span></strong><br />
PGN database program for creating opening books, also a Chess GUI<br />
5 revision(s) to the C++ source code today (patchset = 625)<br />
no build for this version<br />
<a href="http://sourceforge.net/projects/scid">http://sourceforge.net/projects/scid</a></p>
<p><strong><span style="color:#090;">Stockfish 2.2 for iPad/iPhone</span></strong><br />
Engine &amp; GUI<br />
- engine renamed from Glaurung to Stockfish and updated<br />
<a href="http://itunes.apple.com/us/app/stockfish-chess/id305558605?mt=8">http://itunes.apple.com/us/app/stockfish-chess/id305558605?mt=8</a></p>
<p><span style="font-size:large;"><strong>Down/Problem Chess Websites</strong></span> <img src="images/smilies/frown.png" alt=":-(" /></p>
<p>Frenzee homepage down for 90 days (webpage taken down until new engine release)<br />
NSVChess homepage down for 44 days (403 error: forbidden)<br />
Prophet site down for 14 days (&quot;This domain name expired on 11/01/2010 and is pending renewal or deletion&quot;)<br />
Holger Schluckebier Mac builds homepage down for 24 days (internal server error)<br />
<span style="color:#090;">Michel Van den Bergh sites back up (GNUChess, Polyglot, and Toga) <img src="images/smilies/smile.png" alt=":-)" /><br />
Smash homepage back up <img src="images/smilies/smile.png" alt=":-)" /> </span></p>
<p><span style="font-size:large;"><strong>Wiki Changes</strong></span><br />
Nothing new today <img src="images/smilies/frown.png" alt=":-(" /></p>
<p><span style="font-size:large;"><strong>Bonus Notifications</strong></span> (recent releases of free stuff)</p>
<p><strong><span style="color:#f00;">Warnings:</span></strong><br />
<span style="color:#f00;">- do not install unwanted toolbars, etc.<br />
- alpha releases have new features; crashes and bugs are to be expected<br />
- beta releases have new features; they may contain bugs or crash<br />
- release candidate software may contain minor bugs; crashes are rare</span></p>
<p><strong><span style="color:#090;">BurnAware 3.1</span></strong><br />
CD/DVD/Blu-ray disc-burning software<br />
<a href="http://www.burnaware.com/burnaware_free.html">http://www.burnaware.com/burnaware_free.html</a> (info)<br />
<a href="http://www.burnaware.com/downloads.html">http://www.burnaware.com/downloads.html</a> (download)</p>
<p><span style="font-size:large;"><strong>Meaning of Colors</strong></span></p>
<p><strong><span style="color:#f00;">Red = New or Warning</span></strong><br />
<strong><span style="color:#090;">Green = Updated</span></strong><br />
<strong><span style="color:#555;">Gray = Info Only</span></strong></p>
<p>Engine List: <a href="http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:chess_engine_list">http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:chess_engine_list</a><br />
Chess News: <a href="http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:chess_news_list">http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:chess_news_list</a></p>
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<link>http://www.computer-chess.org/forum/index.php?id=1117</link>
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<pubDate>Tue, 16 Nov 2010 00:59:28 +0000</pubDate>
<category>Updates</category>
<dc:creator>Ron</dc:creator>
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