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.TH "STOCKFISH" "6" "October  10, 2009" "" ""
.SH "NAME"
stockfish \- free UCI chess engine, to calculate chess moves
.SH "SYNOPSIS"
.B stockfish
.SH "DESCRIPTION"
This manual page documents the
.B stockfish
command.
.PP 
\fBstockfish\fP is an UCI chess engine, to calculate chess moves

Stockfish is a free UCI chess engine derived from Glaurung 2.1. It is
not a complete chess program, but requires some UCI compatible GUI
(like XBoard with PolyGlot, eboard, Jose, Arena, in order to be used 
comfortably.  Read the documentation for your GUI of choice for information 
about how to use Stockfish with your GUI.

This version of Stockfish supports up to 8 CPUs, but has not been
tested thoroughly with more than 2.  The program tries to detect the
number of CPUs on your computer and set the number of search threads
accordingly, but please be aware that the detection is not always
correct.  It is therefore recommended to inspect the value of the
"Threads" UCI parameter, and to make sure it equals the number of CPU
cores on your computer. If you are using more than four threads, it
is recommended to raise the value of "Minimum Split Depth" UCI parameter
to 6.

Opening book

This version of stockfish has experimental support for PolyGlot opening
books.  For information about how to create such books, consult the
PolyGlot documentation.

.SH "OPTIONS"
This program does NOT follow the usual GNU command line syntax, with long options starting with two dashes.
.SH "SEE ALSO"
Communication with UCI commands is documented by
"The UCI Communication Protocol" in /usr/share/doc/stockfish/engine\-interface.txt.
.SH "AUTHOR"
stockfish was written by <Romstad Tord <tord@glaurungchess.com>> and Marco Costalba <mcostalba@gmail.com>.
.PP 
This manual page was written by Oliver Korff <ok@xynyx.de>,
for the Debian project (but may be used by others).

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