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GES,
David B. Weller's first chess engine, written in C and compliant to the Chess Engine Communication Protocol aka WinBoard, first released in July 2004 ^[1]. GES uses PVS with aspiration, a main transposition table and pawn hash table ^[2], verified null move pruning, and a rudimentary SEE. GES' extension policy was to add one ply if any of the conditions met, which were checks, pawns to 2nd/7th rank, mate threats, one replies, and recaptures, and later tried aggregated but fractional extensions without obvious progress ^[3].

See also

• Xpdnt

Forum Posts

2004

• new win32 winboard engine by David B. Weller, CCC, July 07, 2004
• GES is working! by David B. Weller, CCC, July 27, 2004
• GES 108 by David B. Weller, CCC, August 17, 2004
• GES 110 available by David B. Weller, CCC, August 18, 2004
• GES 111 by David B. Weller, CCC, August 19, 2004
• GES 117 available n/t by David B. Weller, CCC, September 04, 2004
• GES_126 available by David B. Weller, Winboard Forum, October 24, 2004
• GES_132 by David B. Weller, Winboard Forum, December 23, 2004
• GES_133 by David B. Weller, Winboard Forum, December 26, 2004

2005

• Under the wire! GES_134 by David B. Weller, Winboard Forum, January 06, 2005
• About GES.. by Carlos Pesce, Winboard Forum, January 14, 2005
• GES Lives! by David B. Weller, Winboard Forum, February 19, 2005
• Testers needed by David B. Weller, Winboard Forum, February 22, 2005
• Limiting extensions by David B. Weller, Winboard Forum, February 23, 2005
• GES_136 available by David B. Weller, Winboard Forum, March 21, 2005

External Links

• Index of /chess/engines/Jim Ablett/GES compiled by Jim Ablett, hosted by Kirill Kryukov
• Engine Download List from Ron Murawski's Computer-Chess Wiki

References

1. ^ new win32 winboard engine by David B. Weller, CCC, July 07, 2004
2. ^ GES 111 by David B. Weller, CCC, August 19, 2004
3. ^ Limiting extensions by David B. Weller, Winboard Forum, February 23, 2005

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