Buzz

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Buzz, a Chess Engine Communication Protocol compliant chess engine written by Pradu Kannan in C++. An early version is available as open source engine under the GPL, intended to be an example program for new chess programmers.

Buzz is a bitboard engine and applies Pradu Kannan's main stream implementation of Magic Bitboards with individual table sizes for each square, later dubbed Fancy Magic Bitboards, the generator is available as open source from the Buzz site. Buzz got a 2.2 x speedup from 32-bits to 64-bits on Core2. It uses a kind of principal variation search, dubbed Node-Type Search (NTS), explicitly considering node types, and utilizes multiple threads for a parallel search. In collaboration with Andres Valverde and Fonzy Bluemers, Buzz' search was incorporated into the team effort Dirty.

=Tournaments= So far, Buzz played the first three ACCA Americas' Computer Chess Championships, the ACCA 2006, ACCA 2007, and ACCA 2008, the first two ACCA World Computer Rapid Chess Championships, WCRCC 2007 and WCRCC 2008, as well the CCT9.

=Photos & Games= ACCA 2008: Bob Hyatt, Charles Roberson, Pradu Kannan, Brian Richardson and Ted Summers Buzz - Tinker [Event "ACCA 2008"] [Site "Internet Chess Club"] [Date "2008.11.09"] [Round "5"] [White "Buzz"] [Black "Tinker"] [Result "1-0"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.d4 cxd4 8.cxd4 Nxe4 9.d5 Nd8 10.Re1 f5 11.Nc3 Nxc3 12.bxc3 Rc8 13.Qd4 Kf7 14.Qxa7 Rxc3 15.Qd4 Rc7 16.Be3 Rc8 17.Rac1 Kg8 18.Rxc8 Qxc8 19.Qa4 Nf7 20.Rc1 Qd8 21.Nd4 Ne5 22.Ne6 Qb8 23.Rc7 Ng6 24.Bd4 h6 25.Qd7 Qa8 26.Nxf8 1-0

=See also=
 * Arthropod
 * Dirty
 * Magic Bitboards
 * Wasp
 * Witz

=Forum Posts=
 * Handling 3-rep/50-move in hash tables by Pradu Kannan, Winboard Forum, February 19, 2007 » Repetitions, Transposition Table
 * Re: Speedup with bitboards on 64-bit CPUs by Pradu Kannan, CCC, April 27, 2007
 * Compiling for Unix by Pradu Kannan, Winboard Forum, May 08, 2007 » Unix
 * Slight enhancement to PVS by Pradu Kannan, Winboard Forum, June 10, 2007 » Principal Variation Search, Node Types
 * Re: multithreading questions by Pradu Kannan, CCC, August 08, 2007 » Thread
 * A Few General Questions on Parallel Search by Pradu Kannan, Winboard Forum, August 31, 2007 » Parallel Search
 * Re: Adjusting weights the Deep Blue way by Pradu Kannan, Winboard Forum, September 01, 2008

=External Links=

Chess Engine

 * Buzz - A Winboard Chess Engine
 * Buzz from WBEC Ridderkerk
 * Buzz 0.08 64-bit in CCRL 40/4
 * Buzz 0.08 32-bit in CCRL 40/40

Misc

 * Buzz (mascot) from Wikipedia
 * Salt Lake Bees from Wikipedia
 * Category:Buzz (mascot) - Wikimedia Commons
 * Yellow jacket from Wikipedia


 * Buzz (disambiguation) from Wikipedia
 * Buzz cut from Wikipedia


 * The Buzz (disambiguation) from Wikipedia
 * Buzzer from Wikipedia
 * Shocking Blue - Love Buzz (1969), YouTube Video
 * Excerpt from At Land (1944) directed by, and starring Maya Deren

=References=

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