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According to a former [[Arena]] site, Betsy was the first published chess engine able to play [[Chess960]] <ref>[https://chess-tigers.de/index_news.php?id=308&rubrik=4&PHPSESSID=d71dfe17e7e8aae16adce6f8fb284410 Der Chess960-Express ist nicht mehr aufzuhalten], [https://chess-tigers.de/cttc_main.php?rubrik=7 Chess Tigers Training Center], July 20, 2005 (German)</ref>, and was therefore Arena partner engine.
=Neural Networks=Quote by [[Landon Rabern]] <ref>[https://landon.github.io/#about landon rabern - about] (2019)</ref> As a child, I was obsessed with machine intelligence. I coded a strong chess AI (codenamed Betsy) and experimented with using [[Neural Networks|neural networks]] in Betsy, both for the [[Evaluation|static evaluation]] at [[Leaf Node|leaf nodes]] and within the [[Search Tree|tree]] for [[Pruning|pruning]]. The networks learned from self-play to get about as good as my hand-tuned functions (discounting the slowdown incurred by [[Pawn Advantage, Win Percentage, and Elo|sigmoid evaluation]]). I concluded that to do better, I would need to use raw game state data instead of the set of features I preselected as network inputs; unfortunately, this was 2000 and I did not have nearly enough processing power to do so. =C#Port=
As of 2014, Landon Rabern started to port Betsy to [[C sharp|C#]], available as [[:Category:Open Source|open source engine]] under the [[Massachusetts Institute of Technology#License|MIT License]] at [https://en.wikipedia.org/wiki/GitHub GitHub].
All the major components of a chess engine are there, just not a tuned [[Evaluation|evaluation]] <ref>[https://github.com/landon/Chess GitHub - landon/Chess: Beginnings of a port of Betsy to C#]</ref>.
* [https://en.wikipedia.org/wiki/Hurricane_Betsy Hurricane Betsy from Wikipedia]
* [https://en.wikipedia.org/wiki/Tropical_Storm_Betsy_%28disambiguation%29 Tropical Storm Betsy (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Bitch_(band) Bitch] - [https://en.wikipedia.org/wiki/Betsy_(Bitch_album) You Want It You Got It (Betsy Album)] (1988), [http://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=levMRSqLFrM|alignment=left|valignment=top}}
=References=
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:MIT]]
[[Category:C sharp]]
[[Category:WinBoard]]
[[Category:Mammal]]
[[Category:Meteorology]]
[[Category:Music]]
