Butcher

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Butcher (Rzeźnik in Polish ) a Chess Engine Communication Protocol compliant chess engine by Marek Kołacz, written in C, first released in September 2001. Executables are available for Windows and Linux, early versions ran under DOS.

=Parallel Search= Since version 1.60, Butcher is able to perform a parallel search under Windows using processes and a shared hash table. A master process spawns worker processes, which run independently without any supervision. The Master process prepares all the structures necessary to split the node and continues the search. Worker processes simply use existing "split nodes" to start their search and report the results. The master process is responsible to kill the workers upon exit.

=Tournament Play= Rzeźnik aka Butcher played all Polish Computer Chess Championships, and won its first edition, the PCCC 2002, and the open category of the PCCC 2004 and PCCC 2006, and otherwise was always a top scorer, at the PCCC 2012 best Polish program. Butcher further played multiple CCT Tournaments, and had its tournament debut at the CCT3 in May 2001.

=Publications=
 * Maciej Szmit (2006). The 5th Polish Computer-Chess Championship: The Second Comeback of Butcher. ICGA Journal, Vol. 29, No. 4 » PCCC 2006

=Forum Posts=
 * New Butcher by Grzegorz Sidorowicz, CCC, September 24, 2001
 * Gauntlet Petir v2.0 and Butcher v1.53 with download by Karl-Heinz Söntges, CCC, December 13, 2004
 * Gauntlets Liste B 5' + 5" - Butcher v1.56 - games by Karl-Heinz Söntges, CCC, July 11, 2005

=External Links=

Chess Engine

 * Engine Download List from Ron Murawski's Computer-Chess Wiki
 * Butcher 1.61 64-bit in CCRL 40/40

Misc

 * Butcher (disambiguation) from Wikipedia
 * Butcher from Wikipedia

=References= Up one Level