![]() ![]() Glaurung 0.1.7 by Tord Romstad, Winboard Forum, January 26, 2005.The mate score bug in Glaurung by Tord Romstad, Winboard Forum, January 24, 2005.Glaurung 0.1.5 source code by Tord Romstad, Winboard Forum, November 30, 2004.Glaurung 0.1.4 (off-topic) by Tord Romstad, Winboard Forum, October 18, 2004.Re: Attack table by Tord Romstad, Winboard Forum, October 14, 2004.In February 2014, a modified and tuned version of Glaurung became the chess engine of Play Magnus, a chess application for iPhone and iPod Touch by Play Magnus AS, an Oslo, Norway-based company founded by Magnus Carlsen, who became World Chess Champion in November 2013. In 2007, Tord released an own UCI compliant GUI for Mac OS X, written in Objective-C using the GNUstep implementation of the Cocoa Widget toolkit, later ported for the iPhone. Glaurung applies a tapered evaluation to make a smooth transition between the game phases. Glaurung's evaluation is tellingly summarized by Tord's evaluation philosophy, covering orthogonality, continuity, sense of progress and good worst case behavior. Since early 2006 Glaurung 1.x supports SMP search. ![]() Glaurung is a PVS searcher, using advanced selectivity, and was beside Fruit the program which made LMR popular. With the advent of Magic Bitboards, Glaurung 2 was a complete rewrite utilizing bitboards as primary board representation. ![]() Glaurung versions prior to 2.0 applied 16x16 Vector Attacks, combining the property of the 10x12 board with its surrounding ranks and files, which ensure a knight can not jump off the board, with the property that a square difference uniquely maps a vector in the Chebyshev vector space of a chessboard. It won two times the International Open Polish Computer Chess Championships, in 20, and further played the ICT 2007, and the CCT8, CCT10, and CCT11 online tournaments. Chess960 compliant, Glaurung played two Livingston Chess960 Computer World Championships, in 2005 where it became third, and the in 2006. ![]()
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