Jazz

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Origin of the word jazz

Jazz,
an open source engine under the GNU General Public Licence by Evert Glebbeek, written in C, first released in February 2011 . Jazz supports both, the Universal Chess Interface and Chess Engine Communication Protocol, and using appropriate compiles, runs on Windows, Linux and Mac OS X boxes.

Description

Jazz uses bitboards, first rotated bitboards, later Kindergarten bitboards to determine sliding piece attacks . It performs fail-soft alpha-beta principal variation search with quiescence, null move pruning and check extensions. Move ordering considers hash move, mate killers, and along with a SEE, winning captures and promotions. Further, beside the killer heuristic and countermove heuristic, a so called Combo Move heuristics is used to possibly refute opponent moves along similar lines . The implementation of a multithreaded parallel search along the Young Brothers Wait Concept with lock-less hashing was elaborated by Evert Glebbeek in a April 2013 CCC posting . Jazz' evaluation takes material, piece-square tables, pawn structure, mobility, and king safety into account.

See also

• Sjaak
• Leonidas

Forum Posts

• Chess engine Jazz now available by Evert Glebbeek, CCC, February 22, 2011
• Jazz r444 by Evert Glebbeek, CCC, March 08, 2011
• Jazz r501 (source only) by Evert Glebbeek, CCC, October 02, 2011
• Jazz 640 released by Evert Glebbeek, CCC, January 24, 2013
• Implementation of multithreaded search in Jazz by Evert Glebbeek, CCC, April 20, 2013 » Parallel Search, Thread
• Jazz r818 by Evert Glebbeek, CCC, December 17, 2014

External Links

Chess Engine

• Chess (Jazz & Sjaak) home
• Chess (Jazz & Sjaak) history
• Chess (Jazz & Sjaak) design
• Chess (Jazz & Sjaak) search
• Chess (Jazz & Sjaak) evaluation
• Jazz in CCRL 40/4

Jazz

• Jazz (disambiguation) from Wikipedia
• Jazz from Wikipedia
• Willem Breuker Kollektief - Amsterdamned Jazz, YouTube Video

References

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