Author: Chessfun
Date: 00:38:24 11/21/03
Go up one level in this thread
On November 20, 2003 at 19:14:15, Jorge Pichard wrote: >Ruffian 2.0 by Per-Ola Valfridsson (Sweden) is the strongest Winboard compatible >engine in the world today. The freely available and downloadable version of >Ruffian (ver. 1.0.5) is placed first on the Winboard Engines Rating List. Its >successor, coming more than one year later, with improved features and much >higher playing strength, compared with 1.0.5. >Ruffian 2.0 is not only capable of holding his own against the strongest >commercial chess programs in the world, but also able to compete successfully >against any of them. > >WB I / II & UCI protocol support > >Linux engine included > >11 playing levels, interesting settings! > >Opening books by Prof. Dr. Djordje Vidanovic !! > >Our Chess GUI Arena 1.0 by Martin Blume !! > >Ruffian 2.0 is a much improved engine that is considerably stronger than version >1.0.1 / 1.0.5. More chess knowledge has been added and many other areas have >been enhanced and improved. Piece mobility has been completely rewritten and the >new version has a more active positional playing style. >The engine is written in portable ANSI C and has been tested on a number of >platforms such as Windows, Mac OSX, Linux, Solaris, Pocket PC and PalmOS. > >Ruffian is a fast program that reaches high search depth very quickly, and this >gives it excellent tactical abilities. Extensions, pruning and evaluation have >been carefully tuned to maximize Ruffian's playing strength. Mobility is based >on precalculated tables that can recognize special patterns; this is one of the >major evaluation terms. Ruffian has a lot of endgame knowledge and can play >endgames fairly well. With the combination of endgame tables, Ruffian knows when >to convert to a winning endgame. Search is based on iterative deepening, >principal variation search algorithm (PVS), extension, SEE, transposition >tables, recursive null-move and forward pruning. Hmm, wonder who we should thank for taking it commercial. Sarah.
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