Sungorus

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Sungorus, an UCI compliant open source chess engine by Pablo Vazquez, first released in June 2009. Last recent version is Sungorus 1.4 from June 2010, which was base of further development by Pawel Koziol and his Rodent engine.

=Features=

Board Representation

 * 6+2 Bitboard Board Definition
 * 8x8 Board
 * Kindergarten Bitboards
 * BitScan by De Bruijn Multiplication
 * SWAR-Popcount

Search

 * Fail Soft Alpha-Beta with Principal Variation Search
 * Quiescence Search at depth <= 0
 * Transposition Table
 * Null Move Pruning
 * PV-Table on Stack
 * MVV/LVA for sorting captures
 * History Heuristic

Evaluation

 * Material
 * Piece-Square Tables
 * Mobility

=See also=
 * Hamsters
 * Rodent

=Forum Posts=
 * Sungorus 1.0 by Pablo Vazquez, CCC, June 18, 2009
 * Sungorus 1.0.1 : 1856 by Patrick Buchmann, CCC, June 21, 2009
 * Sungorus 1.1 by Pablo Vazquez, CCC, July 05, 2009
 * Sungorus 1.1 : 2167 by Patrick Buchmann, CCC, July 10, 2009
 * Sungorus 1.2 by Pablo Vazquez, CCC, August 06, 2009
 * Sungorus 1.2 : 2157 by Patrick Buchmann, CCC, August 08, 2009
 * Sungorus 1.3 by Pablo Vazquez, CCC, February 13, 2010
 * Sungorus 1.4 by Pablo Vazquez, CCC, June 30, 2010

=External Links=

Chess Engine

 * Sungorus 1.4 - download
 * Sungorus 1.4 64-bit in CCRL 40/40

Misc

 * Djungarian hamster (Phodopus sungorus) from Wikipedia
 * Mongolian three-toed jerboa (Stylodipus sungorus) from Wikipedia
 * Phodopus sungorus - Wikispecies

=References= Up one Level