Betsy, a WinBoard compatible chess engine written by Landon W. Rabern in C with a little Assembly, first released in September 2000 [1]. Originally written in Pascal with its own text interface it was rewritten in C using rotated bitboards. Betsy applies PVS with null move pruning, and various standard and some aggressive non-standard extensions and reductions. According to the Arena site, Betsy was the first published chess engine able to play Chess960, and is therefor Arena partner engine [2].
Hurricane Betsy [3]

See also

• Given Name
• Meteorology

Forum Posts

• Betsy 5.0 is now winboard compatable by Landon W. Rabern, CCC, September 06, 2000
• Betsy 5.26 by Landon W. Rabern, CCC,
• Betsy in Arena by Mark Loftus, CCC, September 13, 2003
• Betsy 6.5.1 by Landon Rabern by Norbert Raimund Leisner, CCC, August 21, 2008

External Links

Chess Engine

• Arena Chess GUI 3.5 - Betsy
• Index of /chess/engines/Norbert's Collection/Betsy by Norbert Raimund Leisner, hosted by Kirill Kryukov
• Betsy from WBEC Ridderkerk
• Betsy 6.51 Nobook in CCRL 40/4
• Betsy Fischer in CCRL 40/4 FRC

Misc

• Betsy from Wikipedia
• Betsy (disambiguation) from Wikipedia
• Betsy (dog) from Wikipedia
• Hurricane Betsy from Wikipedia
• Tropical Storm Betsy (disambiguation) from Wikipedia

References

1. ^ Betsy from WBEC Ridderkerk
2. ^ Arena Chess GUI 3.5 - Betsy
3. ^ Hurricane Betsy in the Gulf of Mexico in September of 1965 as taken by the TIROS-8 weather satellite. Source: NOAA Photo Library, September 4, 1965

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