Ghost

a Chess Engine Communication Protocol compatible, free chess engine written in C++ by Philipp Claßen, supported by his brother Michael Claßen. The name was taken from the name of [|Wolf Larsen's] seal-hunting schooner in the novel [|The Sea-Wolf] by [|Jack London].
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 * [[image:ghostseawolf.png link="http://etc.usf.edu/lit2go/153/the-sea-wolf/"]] ||~  || **Ghost**,

Ghost started its life in about 2000 as subject of a school project, the first version appeared in early 2001, playing online at Internet Chess Club, and later in rating list tournaments such as CCRL. Subsequent versions were Ghost 1, Ghost 2, and Ghost 3. Executables are available for Windows and Linux platforms. Likely, the current Ghost is bitboard based, due to the much faster 64-bit executable. || toc =Ghost 1= Ghost 1 performed NegaScout, IID, killer- and history heuristics, recursive null move pruning with depth reduction of 3, razoring and futility pruning, and a unique technique to detect perpetual checks. It further used the oracle approach of pre-scanned piece-square tables at the root.
 * The Ghost ||~  ||^   ||

=Ghost 2= The second version, first released in 2003, is a MTD(f) searcher, further utilizing late move reductions, adaptive null move pruning with R of 2 or 3 plies, ETC, and a unique pin detection extension. Ghost 2 has a safer perpetual check detection than Ghost 1, and usus local history counters.

=Ghost 3= Still using MTD(f), the search has been rewritten from scratch to support parallelism using [|work stealing] provided by the [|Threading Building Blocks] library. The stable version 3.1 was released on May 30, 2017.

=See also=
 * Demonology
 * Fiction
 * Ship

=Forum Posts=
 * [|crafty vs ghost on ICC ...could Kasparov himself execute such an attack?] by Jeffrey Wadsworth, CCC, October 28, 2001 » Crafty
 * [|new ghost homepage] by Michael Claßen, Winboard Forum, September 22, 2004
 * [|Ghost 3.1 released!] by Günther Simon, CCC, June 01, 2017

=External Links=

Chess Engine

 * [|Ghost] by Philipp Claßen
 * [|Ghost] from WBEC Ridderkerk

Misc
> feat.: [|Joachim Schoenecker], [|Bart De Nolf], [|Mimi Verderame] > media type="youtube" key="GtbTC-EUvn4"
 * [|Ghost (disambiguation) from Wikipedia]
 * [|Ghost from Wikipedia]
 * [|List of ghost ships from Wikipedia]
 * Adam Marczyk (**2003**). //[|A Ghost in the Machine]//. [|EBON MUSINGS: The Atheism Pages]
 * [|John Ruocco] - A Ghost of a Chance, [|Taipei Jazz Festival], 2013, [|YouTube] Video

=References= =What links here?= include page="Ghost" component="backlinks" limit="30"
 * Up one Level**