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[[FILE:Rome-SPQR.JPG|border|right|thumb| [https://en.wikipedia.org/wiki/Manhole_cover Manhole cover] in [https://en.wikipedia.org/wiki/Rome Rome] <ref>[https://en.wikipedia.org/wiki/Manhole_cover Manhole cover] in [https://en.wikipedia.org/wiki/Rome Rome] with [https://en.wikipedia.org/wiki/SPQR SPQR] inscription, Image by [https://en.wikipedia.org/wiki/User:Indian_Joe Indian Joe], January 08, 2007, [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons], [https://en.wikipedia.org/wiki/SPQR SPQR from Wikipedia]</ref> ]]
'''Gullydeckel''',(Gullydeckel2, Gully)<br/>a [[Chess Engine Communication Protocol]] (CEPT) compliant [[:Category:Open Source|open source engine]] under the [[Free Software Foundation#GPL|GNU General Public License]] by [[Martin Borriss]], written in [[C]] by . A first version, Gullydeckel '''1''', has been developed in 1994/1995. Gullydeckel '''2''' was written mainly in 1996, while [[Windows|Windows 32]] support, analysis, [[Martin BorrissPondering|pondering]]. Supported platforms are , [[LinuxWinBoard]] protocol version 2 aka CEPT and [[ChessBase (Database)#GUI|ChessBase GUI]] compatibility was finally realized in 2002/2003 <ref>[http://borriss.com/g2/RELEASE Gullydeckel2 chess playing program]</ref>. Beside Windows, supported platform is [[Linux]].
=Features=
==[[Board Representation]]==
* [[Piece-Lists]]
* [[Vector Attacks|16x8 Vector Attacks0x88]]
==[[Search]]==
* [[Iterative Deepening]]
* [[King Safety]]
=Square 0x88 Difference=The pre-initialized <span style="background-color: #e5e4e4;">static int vector[256]</span> in "attacks.c" <ref>[http://borriss.com/ Gullydeckel Chess Program - Download]</ref> with [[Direction#RayDirections|ray directions]] encoded, which is indexed by 16x8 aka[[0x88#SquareRelations|0x88 square difference]] plus offset, somehow reminds on a [https://de.wikipedia.org/wiki/Schachtdeckel Gullydeckel], the colloquial German name for [https://en.wikipedia.org/wiki/Manhole_cover Manhole cover] <ref>edited, symbols replaced for column alignment</ref>:
<pre>
/*
</pre>
=Forum Posts=
* [https://groups.google.com/d/msg/rec.games.chess.computer/b7AtuVY4reE/7bWjK9x3v6kJ Re: Deep Quiesence Searching] by [[Martin Borriss]], [[Computer Chess Forums|rgcc]], February 2624, 1997* [https://groups.google.com/d/msg/rec.games.chess.computer/b7AtuVY4reE/fxkqPXwkaQIJ Re: Deep Quiesence Searching] by [[Martin Borriss]], [[Computer Chess Forums|rgcc]], February 2625, 1997
* [https://www.stmintz.com/ccc/index.php?id=145760 Gullydeckel - move generator] by [[Thomas Mayer]], [[CCC]], December 20, 2000
[[Category:WinBoard]]
[[Category:XBoard]]
[[Category:Mac]]
