Changes

was a private chess engine rating list and chess engine news and tournament site maintained and hosted by [[Leo Dijksman]]. The rating list is based on games automatically played via the [[Chess Engine Communication Protocol]] with [[:Category:WinBoard|WinBoard]] and [[:Category:UCI|UCI engines]] which comply to the rules <ref>[https://web.archive.org/web/20150213221910/http://wbec-ridderkerk.nl/html/info.htm Information and rules to participate] from [[WBEC|WBEC Ridderkerk]] ([https://en.wikipedia.org/wiki/Internet_Archive Internet Archive])</ref>. WBEC tournaments started in 2001 with four divisions, continued by 2011 and its 17th edition, in six devisions with 24 engines each plus qualifier for new engines <ref>[https://web.archive.org/web/20150220035309/http://wbec-ridderkerk.nl/index.html Setup of WBEC Ridderkerk] ([https://en.wikipedia.org/wiki/Internet_Archive Internet Archive])</ref>. The [https://en.wikipedia.org/wiki/Elo_rating_system ELO rating] is calculated using [[Bayesian Elo Rating]] by [[Rémi Coulom]] <ref>[http://remi.coulom.free.fr/Bayesian-Elo/ Bayesian Elo Rating] by [[Rémi Coulom]]</ref>. As of 2012, after finishing the 19th edition, Leo Dijksman had no fun anymore with computerchess tournaments, due to many [[Clones:Category:Clone|clones]]/[[Clones#:Category:Derivative|deratives]] and some authors seem not to be willing to fix their own bugs <ref>[https://web.archive.org/web/20150213221910/http://wbec-ridderkerk.nl/html/info.htm Information and rules to participate] from [[WBEC|WBEC Ridderkerk]] ([https://en.wikipedia.org/wiki/Internet_Archive Internet Archive])</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=44424 Sad News Regarding WBEC] by [[Adam Hair]], [[CCC]], July 14, 2012</ref>. Leo Dijksman died in February 2015 after battling cancer for almost two years <ref>[http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=53371 Very sad news about Leo Dijksman] by [[Volker Pittlik]], [[Computer Chess Forums|Winboard Forum]], March 02, 2015</ref>. His WBEC Ridderkerk sites are thankworthy archived by the [https://en.wikipedia.org/wiki/Internet_Archive Internet Archive] <ref>[https://web.archive.org/web/20150220035309/http://wbec-ridderkerk.nl/index.html WBEC Ridderkerk, chessengine news and tournament site], hosted by the [https://en.wikipedia.org/wiki/Internet_Archive Internet Archive]</ref>.