Rybka - for the serious chess player. #Computer chess Downloads.DownloadsFree downloads2016-10-13! With many corrections, additions, improvements, novelties and a few extra lines. Please make sure always to use the following options (see Book Options): 1. Tournament Book should be switched ON; 2. Minimum games should be set to 3; 3. Up to move should be set to 1002016-07-05a new gambit testsuite for engine testing with exciting gambit lines.2016-05-27, a whole new opening book in.ctg format by Jeroen Noomen, author of the Rybka 3 opening book.
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The book is very solid, most work was done in the Sicilian (Najdorf, Sveshnikov), Ruy Lopez (Marshall, Zaitsev), Slav (Classical and Semi-Slav), Queen's gambit and Nimzo/Queen's-Indian.2015-12-24, based on Worldchampionship matches from Botvinnik-Smyslov 1957 and Spasski-Fischer 1972 through to Kasparov-Karpov 1990. In.pgn and.abk format.2015-07-30: A collection of seven test suites including three opening suites (sicilian, king's indian, benko) and the latest gambit and short lines suites. In Arena format (.abk).2015-06-15: GambitLines.ctg is an openingbook that can be used in the ChessBase GUI.
It is meant for engine-engine testing. The book contains gambit lines only: one side has a (small) material advantage, the other side has to prove compensation.2015-06-07: ShortLines.ctg is an openingbook that can be used in the ChessBase GUI. It is meant for engine-engine testing. The purpose of the book is to give the engines only a small number of opening moves and keep as many pieces on the board as possible. Typically, the book is only six moves deep.
In some cases more opening moves are available, to make games more interesting.2015-05-17: 100 short lines, to force the programs to calculate as early as move 2 and as late as move 8. The goal is to prevent test positions with already several pieces off the board and / or test positions with most pieces already developed. Thus, programs have to solve the development problems themselves.2015-05-17- Jeroen Noomen merged all his test suites in one BIG test suite!2014-11-12, a huge collection of important positions from the Bg5 Najdorf intended for engine testing.2014-06-21, the 30 positions have been taken from very recent top GM games, for engine testing.2012-04-16, 50 topical, trendy, sharp, modern and sometimes murky positions, for engine testing.2012-02-04, a collection positions from the Benko gambit. Designed for engine vs. Engine testing.2012-01-29, a collection of important positions from the King's Indian Defence. Designed for engine vs.
Engine testing.2011-12-17, a collection of positions from the sicilian opening. Intended for engine vs. Engine testing.2011-12-03The 2012 version of Jeroen Noomen's set of opening positions. Intended for engine vs engine testing, gives a balanced representation of modern chess (pgn file).2011-03-05, an update for the Rybka 4 engine, fixing various bugs.2010-12-04- contains all games played by Rybka on Lukas' cluster (pgn file).2009-10-09All (ca. 30 MB).2009-03-04- a selection of older Rybka versions (from Rybka 1.0 to Rybka 2.2), for collectors and Rybka fans.2008-10-21by Sedat Canbaz, one of the very best opening books for computer chess.2008-09-10- one of the strongest free.ctg books (by Sedat Canbaz).2008-07-26- an updated version of Jeroen Noomen's set of opening positions. Intended for engine vs engine testing, gives a balanced representation of modern chess.2008-07-26- Jeroen Noomen's set of gambit positions. Intended for engine vs engine testing.2007-02-01(the second version of the 'Turk' opening book by Djordje Vidanovic)2006-12-30(a very strong book for Chessbase interfaces by Aung Thura)2006-11-182006-09-23(guest book for Chessbase interfaces)2006-06-10- an updated version of Jeroen Noomen's set of opening positions.
Intended for engine vs engine testing, gives a balanced representation of modern chess.2006-05-15.
Rybka 4About RybkaThe creator of Rybka Chess engine is Vasik Rajilich with origin from Czech Republic. Interesting fact about the name is that Rajilich never said how he gave the name Rybka to his chess engine, but some people think it was because of his wife who is also one of the strongest female chess players and the main tester of his engine. The name Rybka comes from Slovakian name for little fish and who knows maybe he calls his wife like that. Rybka has come with big number of tournaments including the title of World Chess Champion for four years in the row, from 2007 to 2010. In June 2011 International Computer Games Association decides that Rybka had plagiarized its code from two other chess engines Crafty and Fruit. With this decision Rybka was disqualified and dishonored, and lose its title of World Champion in Computer Chess Games.Rybka 4Rybka engine notes great improvements in tactics in the last two years.
The greater of all is the understanding of attacking the king tactics. Reliability and precision on Deep Rybka 4 latest program is far better than his ancestors. Improvements in search made Rybka 4 quicker and more effective and efficient on detecting and making judgments for moves. For the past few years Rybka did not stop with its progress and development of the game logic. For chess professional players and even amateurs Rybka 4 is highly helpful in understanding tactics of the game.
With multiplying cores on processor Rybka speeds up with degree of one point seven and the calculations goes faster than calculations on single cored processors. If you want to use this chess engine and to play chess on it, and to learn and to analyze tactics from it, you can buy it online for 105 euros in small variations of price which depends on website on which you are buying it.System Requirements for Deep Rybka 4: If you have an old computer and want to play chess and choose this particular engine Deep Rybka 4 you can do that if you have performances like this minimum or higher.
You need processor Pentium III with 1 GHz frequency, also you would need 512 MB RAM memory to support the game play. Rybka 4 is Windows version but will work only on Windows XP SP3 or newer, with DirectX9 installed and graphic card that have 256 MB RAM memory to support the UCI and GNU, and the last needed thing is internet access to register your version. For greater performances you will need to have following performances on your computer or even better, let say that this is minimum requirement for greater optimization.
So, you will need processor from the Core series Intel Core 2 Quad, you will also need 3GB RAM memory to support the game algorithm. With the mentioned performances and Windows 7 with DirectX10 and graphic card with 512 MB RAM memory you will fill the true power of this engine.