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Deep Rybka Aquarium 2011 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and many more.
Deep Rybka 4.1 engine - World Computer Chess champion and rating lists leader. Deep Rybka 4.1 is usually also employed in Fritz as well as other chess programs
Publish your chess text: Print, word processor or web
Database: 4, 700, 000 games approximately April 1, 2011.
Supports Chessbase/Fritz CBH format read and convert, Chess Assistant CDP, PGN and EPD databases
One year free membership in ChessOK Playing Zone.
Full Windows 10, 8, 7 32 64 bit and Vista compatibility.
Updated Deep Rybka 4.1 engine
Up as of yet April 2011 databases, trees and CAP evaluations.
IDeA is really a lot faster plus much more intellectual.
Infinite analysis and IDeA are integrated to be effective together inside the games.
Result of infinite analysis of engines is usually stored in numerous trees.
ChessOK Playing Zone client for playing chess by network is built into installation package. It includes one full year free membership is provided to Aquarium 2011 owners.
Language versions: English, German, Spanish, Italian and French versions can be purchased.
System requirements : PC, 256 MB RAM, 4GB of free disk space, Windows 10/8/7/XP/Vista.
Aquarium is usually a modern graphical interface GUI created for Rybka with full support due to its features, including randomizer matches, persistent hash and sampled search.
Simultaneous analysis by multiple Rybka instances. Use 2, 4, 10, 20 as well as 50 chess engines while doing so for faster results
Infinite Analysis might be more flexible previously with analysis presets. Use many engines as well, all analyzing a similar position or different games.
State from the art chess trees fast, powerful, compact
User defined move color priority play only experimental moves where available etc.
Multiple, reusable discarded moves trees
A database with more than 4, 700, 000 games
Images, diagrams both full and partial, visual annotations
Full flexibility in arranging order of pages, sections etc. till the document is published
Chess engine support: Universal Chess Interface UCI protocol, WinBoard protocol
Blitz, Tournament, Time/move and fixed-depth time controls
Aquarium Engine Matches and Tournaments, Part One
Deep Rybka Aquarium 2011 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases plus much more.
Deep Rybka 4.1 engine - World Computer Chess champion and rating lists leader. Deep Rybka 4.1 might be also utilized in Fritz as well as other chess programs
Publish your chess text: Print, word processor or web
Database: 4, 700, 000 games as much as April 1, 2011.
Supports Chessbase/Fritz CBH format read and convert, Chess Assistant CDP, PGN and EPD databases
One year free membership in ChessOK Playing Zone.
Full Windows 10, 8, 7 32 64 bit and Vista compatibility.
Updated Deep Rybka 4.1 engine
Up thus far April 2011 databases, trees and CAP evaluations.
IDeA is quite a bit faster plus more intellectual.
Infinite analysis and IDeA are integrated to be effective together inside games.
Result of infinite analysis of engines may be stored in numerous trees.
ChessOK Playing Zone client for playing chess by network is built-into installation package. It includes 1 year free membership is provided to Aquarium 2011 owners.
Language versions: English, German, Spanish, Italian and French versions can be found.
System requirements : PC, 256 MB RAM, 4GB of free disk space, Windows 10/8/7/XP/Vista.
Aquarium can be a modern graphical interface GUI suitable for Rybka with full support because of its features, including randomizer matches, persistent hash and sampled search.
Simultaneous analysis by multiple Rybka instances. Use 2, 4, 10, 20 and even 50 chess engines as well for faster results
Infinite Analysis might be more flexible than ever before with analysis presets. Use many engines concurrently, all analyzing exactly the same position or different games.
State on the art chess trees fast, powerful, compact
User defined move color priority play only experimental moves where available etc.
Multiple, reusable discarded moves trees
A database with more than 4, 700, 000 games
Images, diagrams both full and partial, visual annotations
Full flexibility in arranging order of pages, sections etc. till the document is published
Chess engine support: Universal Chess Interface UCI protocol, WinBoard protocol
Blitz, Tournament, Time/move and fixed-depth time controls
Aquarium Engine Matches and Tournaments, Part One
Sign nearly get specifics of latest coverages, new programs and deals. Read more
No additional taxes payments.
100% satisfaction guarantee. Learn more about returns exchanges.
For Download. Instant download link delivery when paid by PayPal. Otherwise link somewhat be sent to your e-mail within one day.
Deep Rybka Aquarium 2011 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and even more.
Deep Rybka 4.1 engine - World Computer Chess champion and rating lists leader. Deep Rybka 4.1 is usually also employed in Fritz as well as other chess programs
Publish your chess text: Print, word processor or web
Database: 4, 700, 000 games approximately April 1, 2011.
Supports Chessbase/Fritz CBH format read and convert, Chess Assistant CDP, PGN and EPD databases
One year free membership in ChessOK Playing Zone.
Full Windows 10, 8, 7 32 64 bit and Vista compatibility.
Up thus far April 2011 databases, trees and CAP evaluations.
IDeA is really a lot faster plus more intellectual.
Infinite analysis and IDeA are integrated to function together inside the games.
Result of infinite analysis of engines might be stored in several trees.
ChessOK Playing Zone client for playing chess by network is built into installation package. It includes 1 year free membership is provided to Aquarium 2011 owners.
Language versions: English, German, Spanish, Italian and French versions can be purchased.
System requirements : PC, 256 MB RAM, 4GB of free disk space, Windows 10/8/7/XP/Vista.
Aquarium is really a modern graphical gui GUI made for Rybka with full support because of its features, including randomizer matches, persistent hash and sampled search.
Simultaneous analysis by multiple Rybka instances. Use 2, 4, 10, 20 or perhaps 50 chess engines concurrently for faster results
Infinite Analysis might be more flexible previously with analysis presets. Use many engines while doing so, all analyzing precisely the same position or different games.
State with the art chess trees fast, powerful, compact
User defined move color priority play only experimental moves where available etc.
Multiple, reusable discarded moves trees
A database with well over 4, 700, 000 games
Images, diagrams both full and partial, visual annotations
Full flexibility in arranging order of pages, sections etc. prior to the document is published
Chess engine support: Universal Chess Interface UCI protocol, WinBoard protocol
Blitz, Tournament, Time/move and fixed-depth time controls
Aquarium s Hidden Treasures. Part Two
Aquarium Engine Matches and Tournaments, Part One
Aquarium Engine Matches and Tournaments, Part Two
Deep Rybka Aquarium 2011 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases plus more.
Deep Rybka 4.1 engine - World Computer Chess champion and rating lists leader. Deep Rybka 4.1 could be also utilised in Fritz along with chess programs
Publish your chess text: Print, word processor or web
Database: 4, 700, 000 games around April 1, 2011.
Supports Chessbase/Fritz CBH format read and convert, Chess Assistant CDP, PGN and EPD databases
One year free membership in ChessOK Playing Zone.
Full Windows 10, 8, 7 32 64 bit and Vista compatibility.
Up currently April 2011 databases, trees and CAP evaluations.
IDeA is a lot faster plus more intellectual.
Infinite analysis and IDeA are integrated to operate together inside games.
Result of infinite analysis of various engines may be stored in a variety of trees.
ChessOK Playing Zone client for playing chess by network is built-into installation package. It includes one full year free membership is provided to Aquarium 2011 owners.
Language versions: English, German, Spanish, Italian and French versions can be purchased.
System requirements : PC, 256 MB RAM, 4GB of free disk space, Windows 10/8/7/XP/Vista.
Aquarium is usually a modern graphical graphical user interface GUI created for Rybka with full support because of its features, including randomizer matches, persistent hash and sampled search.
Simultaneous analysis by multiple Rybka instances. Use 2, 4, 10, 20 as well as 50 chess engines as well for faster results
Infinite Analysis might be more flexible than in the past with analysis presets. Use many engines concurrently, all analyzing exactly the same position or different games.
State on the art chess trees fast, powerful, compact
User defined move color priority play only experimental moves where available etc.
Multiple, reusable discarded moves trees
A database with more than 4, 700, 000 games
Images, diagrams both full and partial, visual annotations
Full flexibility in arranging order of pages, sections etc. till the document is published
Chess engine support: Universal Chess Interface UCI protocol, WinBoard protocol
Blitz, Tournament, Time/move and fixed-depth time controls
Aquarium s Hidden Treasures. Part Two
Aquarium Engine Matches and Tournaments, Part One
Aquarium Engine Matches and Tournaments, Part Two
Order any two training programs in your online chess shop and acquire a third workout absolutely free. If your order might be more than 120100 Euro, you'll receive additional present.
New CT-ART 5.0 combines three excellent courses guiding you against beginner to advanced level.
Rybka 4 Aquarium revolutionary analysis and database tool, combined with worlds strongest chess playing engine, Rybka 4.
Aquarium offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases plus more.
Infinite Analysis would be the oldest and also the most common kind of analysis, held by many GUIs. It is enhanced with unique features, for example Infinite Analysis History. If you think you might have analyzed a fascinating position 8 weeks ago, you shouldn't have to guess. Just take an instant look on the Infinite Analysis History.
Analysis is saved in a chess tree which may be viewed within the tree window.
Multiple chess engines might be run simultaneously in a choice of one window or perhaps seperate windows.
Special threats analysis, multivariation mode, selected moves exlucsion, only tree moves analysis, etc.
The full information regarding infinite analysis can be used.
IDeA Interactive Deep Analysis can be a new, unique and powerful analysis method. IDeA examines a job and then follows the main moves automatically to generate a tree of variations. It just keeps on crawling the variations inside an intelligent way, adding more analysis, and not stops and soon you tell it to.
Powerful interactive features enable you to influence the search.
Analysis could be focused on moves and variations that you simply consider important.
Overnight analysis produces hundreds and even thousands of analyzed positions.
IDeA stores the outcomes in a chess tree with your hard disk.
Even if the computer crashes your complete analysis is going to be there once you turn it on again.
Analysis is usually stopped whenever you like, and resumed down the line.
IDeA uses the outcome of previous analysis, even when you start from another position.
Game Analysis and Find Blunders. Automatically analyze your games. Read more.
Annotate Your Games And Chess Trees!
Use Chess Informant style symbols, record verbal commentary, apply board graphics etc.
Insert reference games at a database and endgame information from tablebases.
Annotate a move or a job just once and you may see your annotations everywhere precisely the same position arises.
All info that is required to annotate games can be used.
Rybka 4 Aquarium reads and converts essentially the most widely used database formats, including:
Rybka 4 Aquarium supports both UCI WinBoard protocols, that are used by modern chess engines. That means it is simple to connect other UCI and Winboard engines going without running shoes, like Shredder, Junior, Naum, Zappa, HIARCS etc.
Play: Normal, Handicap, Chess960, Playing Zone Server
Three handicap modes, including predefined material and elo rating lists
Support for Chess960/Fischerandom games.
Blindfold and semi-blindfold games.
Free online play in the ChessOK Playing Zone.
Broadcasts with the most important chess events for the Playing Zone, with live Rybka analysis.
Flexible concept of time-controls.
Opening book selection and maximum amount of moves played from book.
Start through the standard starting position or some other position.
Rybka Randomizer matches might give you the correct answer inside your analysis in which you suspect that this engine evaluates a positions incorrectly.
Now you may create your own chessbooks iBooks. It s a normal chessbook, where you can insert diagrams and hyperlinks, and to begin with notation with variations which can be displayed for the board. So any DSN-database may be converted in a convenient book and become exported in a blog!
The full iBook documentation will be here.
There s several procedures that you simply d like perform on your own databases and trees, however they are too special being implemented in Aquarium. So why not to implement it yourself? With Aquarium Scripter you will gain access to any data you want and process it in any form that suits you. Just test it s easy!
Rybka 4 would be the strongest chess engine along with the 2008 computer chess world champion. It dominates all independent computer chess rating lists with ELO rating of 3150.
Aquariums advanced analysis functions take advantage of Rybkas strength.
Rybka 4 is UCI engine, and thus it is usually taken from Aquarium and linked to any chess program, supporting UCI protocol, like Fritz Chessbase or Arena.
Compare with Aquarium Packages what s the real difference between Aquarium 2010 and Aquarium 4?
Rybka 4 Aquarium and Deep Rybka 4 Aquarium the most recent Aquarium GUI together with the latest and also the strongest chess playing engines. Rybka 4 Aquarium is suggested for the users having just one single core CPU within the computer. For reaching maximum strength within the computers with multiple cores CPUs Deep Rybka 4 Aquarium is required.
Aquarium 2010 and Deep Aquarium 2010 Aquarium GUI with Rybka 3 chess playing engine playing approximately 60 ELO weaker as opposed to Rybka 4 engine. You may upgrade totally free Aquarium 2010 GUI to the modern Rybka 4 Aquarium GUI by downloading and installing 4.0.5 update package of Aquarium
Download weekly chess database updates containing 2000 games with latest tournaments and games in PGN and Chess Assistant format.
Study chess online on our new dedicated website. There are many education and countless chess puzzles to eliminate.
Order any two training programs inside our online chess shop and have a third workout absolutely free. If your order is a bit more than 120100 Euro, you're going to get additional present.
New CT-ART 5.0 combines three excellent courses guiding from beginner to advanced level.
Rybka 4 Aquarium revolutionary analysis and database tool, combined with worlds strongest chess playing engine, Rybka 4.
Aquarium offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases plus more.
Infinite Analysis could be the oldest as well as the most common style of analysis, held by many GUIs. It is enhanced with unique features, like Infinite Analysis History. If you think you could have analyzed a unique position 2 months ago, you shouldn't have to guess. Just take a simple look for the Infinite Analysis History.
Analysis is kept in a chess tree which could be viewed inside tree window.
Multiple chess engines may be run simultaneously in either one window or perhaps in seperate windows.
Special threats analysis, multivariation mode, selected moves exlucsion, only tree moves analysis, etc.
The full details about infinite analysis will be here.
IDeA Interactive Deep Analysis is often a new, unique and powerful analysis method. IDeA examines a job and then follows the key moves automatically to generate a tree of variations. It just keeps on crawling the variations in the intelligent way, adding more analysis, and do not stops soon you tell it to.
Powerful interactive features enable you to influence the search.
Analysis may be focused on moves and variations that you just consider important.
Overnight analysis produces hundreds and even thousands of analyzed positions.
IDeA stores the outcomes in a chess tree on your own hard disk.
Even in case your computer crashes your analysis is going to be there after you turn it on again.
Analysis is usually stopped when you like, and resumed down the road.
IDeA uses the outcome of previous analysis, even though you start from a new position.
Game Analysis and Find Blunders. Automatically analyze your games. Read more.
Annotate Your Games And Chess Trees!
Use Chess Informant style symbols, record verbal commentary, apply board graphics etc.
Insert reference games from the database and endgame information from tablebases.
Annotate a move or a job just once and you should see your annotations everywhere a similar position appears.
All info that's needed to annotate games is here now.
Rybka 4 Aquarium reads and converts probably the most widely used database formats, including:
Rybka 4 Aquarium supports both UCI WinBoard protocols, which can be used by most contemporary chess engines. That means you can certainly connect other UCI and Winboard engines for it, like Shredder, Junior, Naum, Zappa, HIARCS etc.
Play: Normal, Handicap, Chess960, Playing Zone Server
Three handicap modes, including predefined material and elo rating lists
Support for Chess960/Fischerandom games.
Blindfold and semi-blindfold games.
Free online play for the ChessOK Playing Zone.
Broadcasts from the most important chess events for the Playing Zone, with live Rybka analysis.
Flexible concept of time-controls.
Opening book selection and maximum volume of moves played from book.
Start through the standard starting position or other position.
Rybka Randomizer matches could give you the correct answer as part of your analysis in places you suspect the engine evaluates a positions incorrectly.
Now you may create your own chessbooks iBooks. It s a regular chessbook, where you can insert diagrams and hyperlinks, and for starters notation with variations which might be displayed within the board. So any DSN-database is usually converted in a convenient book and also be exported in to a blog!
The full iBook documentation can be used.
There s many procedures that you simply d like perform on the databases and trees, however they are too special for being implemented in Aquarium. So why not to implement it yourself? With Aquarium Scripter you get access to any data you want and process it in any form you prefer. Just try it out s fairly simple!
Rybka 4 will be the strongest chess engine along with the 2008 computer chess world champion. It dominates all independent computer chess rating lists with ELO rating of 3150.
Aquarium s advanced analysis functions make use of Rybka s strength.
Rybka 4 is UCI engine, and therefore it could be taken from Aquarium and linked to any chess program, supporting UCI protocol, like Fritz Chessbase or Arena.
Compare with other Aquarium Packages what s the visible difference between Aquarium 2010 and Aquarium 4?
Rybka 4 Aquarium and Deep Rybka 4 Aquarium the newest Aquarium GUI together with the latest and also the strongest chess playing engines. Rybka 4 Aquarium is required for the users having merely one core CPU inside the computer. For reaching maximum strength about the computers with multiple cores CPUs Deep Rybka 4 Aquarium is mandatory.
Aquarium 2010 and Deep Aquarium 2010 Aquarium GUI with Rybka 3 chess playing engine playing approximately 60 ELO weaker compared to Rybka 4 engine. You may upgrade totally free Aquarium 2010 GUI to the newest Rybka 4 Aquarium GUI by downloading and installing 4.0.5 update package of Aquarium
Download weekly chess database updates containing 2000 games with latest tournaments and games in PGN and Chess Assistant format.
Study chess online on our new dedicated website. There are many classes and 1000s of chess puzzles to eliminate.
ChessOK Aquarium - Ultimate Analysis and Playing Tool; appropriate for Houdini 3
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Strongest chess engine inside world. It leads all independent computer chess rating lists with ELO rating of 3150 and will be the current world computer chess champion. Most of chess grandmasters use Rybka for everyday training and game analysis. Those who have followed laptop chess scene for some years have witnessed certainly one of its biggest revelations - the discharge of Rybka. Its first beta version was published in early December 2005, along with spite of some bugs and rough edges, it surpassed all the programs.
Testing by independent rating organizations quickly confirmed what chess enthusiasts had seen your day Rybka was already released. It went straight on the top of all rating lists, from blitz to long time-controls, along with the gap for the second tier programs am big which it was clear so it would take years until they can catch up with Rybka.
It became clear it was only reliant on time until Rybka took over as the World Computer Chess Champion.
That time came with the 15th ICGA World Computer Chess Championship in Amsterdam in June 2007. Rybka defended the title in 2008.
The latest incarnation of Rybka, version 4, is often a huge improvement in the previous version but still maintains a commanding lead over other chess engines.
Rybka would be the 2007 and 2008 World Computer Chess Champion.
Rybka could be the current Fischerandom/Chess960 computer world chess champion.
Rybka leads all rating lists both chess and Fischerandom/Chess960 of independent rating organizations by way of a large margin.
Rybka can be a UCI chess engine, which means which you can make use of it with nearly every modern chess user interface like Aquarium, Chess Assistant, Fritz, Arena, etc.
Rybka fully supports Aquariums revolutionary Interactive Deep Analysis IDeA.
Rybka can be acquired for both 64-bit and 32-bit systems. The 64-bit version is considerably stronger, but has a 64-bit operating system like Windows XP 64-bit or even a 64-bit version of Windows Vista.
Rybka is accessible in both single-processor and multi-processor versions. The latter takes full advantage from the power of modern multi-core/multi-processor computer which can be becoming more and even more popular.
Languages: Dutch, English, French Standard, German, Italian, Polish, Spanish
Deep Rybka 4 UCI will not be a standalone program and works only in other popular interfaces Fritz, ChessBase, Shredder, Junior, Hiarcs, Chess Assistant, etc.
PC, 256 MB RAM, 4GB disk space, Windows 7/XP/Vista
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Advanced chess analysis, databases and publishing
Rybka 4 Aquarium and Deep Rybka 4 Aquarium - the most recent Aquarium GUI with the most up-to-date and most powerful chess playing Engine. Rybka 4 Aquarium is mandatory for users with merely one core CPU on the computers. For reaching maximum strength for the computers with multiple cores CPUs Deep Rybka 4 Aquarium is required.
Aquarium 2010 and Deep Aquarium 2010 - Aquarium GUI with Rybka 3 chess playing engine playing approximately 60 ELO weaker compared to Rybka 4 engine. You may upgrade without cost Aquarium 2010 GUI to the newest Rybka 4 Aquarium GUI by downloading and installing 4.0.5 update package of Aquarium
To order Deep Rybka 4 Aquarium product go through the ordering page or ask directly sales group about bonuses for previous versions Aquarium customers.
ChessOk Aquarium 2010 - the program doesn-t include neither Rybka 3, nor Rybka 4. It is supposed why these engines were bought separately ahead of time. ChessOk Aquarium users can also upgrade the most recent GUI installing 4.0.5 update package of Aquarium.
The latest version of Aquarium is 4.0.5. Check your version using Rybka button Help About menu item. If you have not the newest version it is usually recommended to upgrade it as much as 4.0.5. It is supposed to produce Aquarium 4.0.6 for the middle of July.
German, French, Spanish and then Russian versions of Aquarium 4.0.5 are offered. Install foreign languages pack after youve installed Aquarium. Language packs aren't fully completed yet. One more launch of language packs is predicted with 4.0.6 patch.
Rybka4 Opening book is created by Jiri Dufek, another of Toplalov in the match against Anand and it is being sold like a separate product. It can be acquired for download 1.2 GB installation file, and also on DVD. Rybka 4 book package incorporates not only original files with recommended instead of recommended moves for assorted openings many additional information which might be visible only in Aquarium GUI. It is engine evaluations of 40 millions positions, statistics for recently games and statistics for latest correspondence games. So it provides - must have- data for analytical research of opening theory. Look 2 latest Dadi-s articles on - The New Rybka 4 Aquarium Opening Book- and - Using the Rybka 4 Aquarium Opening Book- Note : First releases of Rybka4 book had minor installation problems. Paths to d2m tree and main book tree might be wrong. You may reload the package and set it up again or use the next program to solve these problems.
After downloading, start it and offer the path to Date directory of Aquarium. The program will inform you if any patch is vital and will make needed changes following confirmation.
One from the nicest top features of Aquarium could be the ability employing remote engines. start your speech engine on any computer and then use it on a different one with Aquarium. Starting Aquarium 4.0.3 you must use update version of Home Server. Use the following website link to download it. Users of previous versions of Aquarium are widely-used to download updates of programs and bases via Chessok downloader program. Due server overload you'll be able to-t download latest updates using Chessok downloader. It is supposed to bring back normal functioning of Chessok downloader server in July 2010. With 4.0.6 update Aquarium team will supply one more innovation - AqScripter program, providing having access to Aquarium API. This program is oriented around the advanced users firstly. They is going to be able to have usage of data structures and engines using advanced scripting language. So many tricky features can be implemented yourself without asking this Aquarium programmers. If you will not be a programmer you continue to may use scripts authored by another users. Some of useful scripts are actually created by Aquarium beta testers. e-mail address in case you have any difficulties with Aquarium. Don-t hesitate to publish to into Aquarium section about your problems. In most cases this section would be the fastest solution to receive the reply on your own problem.
Note : Sometimes after starting Aquarium happens an error message: Failed to set data for CA Chess TrueType. If the truth is it, run Aquarium once with adiminstrative rights. Right simply click Aquarium icon select Run as administrator. You can also utilize a standalone font installation program, just about all needs admin rights.
Note :If youve installed Rybka4 Aquarium, nonetheless it wont start and arises the Access violation at address 0xc0150002, perform following: download the Microsoft Visual C 2008 Redistributable Package x86 or from this point and run it. This problem occur sometimes around the very new computers when Rybka 4 Aquarium was obviously a DVD version
Eager for improvements? Look here for him or her!
Advanced chess analysis, databases and publishing
The following articles were provided by Dadi Jonsson for his monthly column on Chess Cafe.
The subject of the article may be the Rybka 4 Aquarium opening book, which has been prepared by Rybka team member Jiri Dufek.
Jiri continues to be playing chess considering that the age of six, when his grandfather taught him the best way to play. He holds a title of national master, together with being an international master of correspondence chess. His hobbies include computer chess and collecting chess books. He has authored the opening books for Rybkas official competitions where his range of solid but active repertoire, often involving little explored lines, proved for being a great success. He has recently been very successful in freestyle chess, together with his latest triumph as a victory from the Mundial Chess tournament trapped on tape. Jiri wrote the ebook Bijte francouzskou! Beating the French along together with his friend and long-time associate IM Roman Chytilek. Jiri will no longer plays over-the-board chess, but focuses instead on opening analysis and chess analysis on the whole. Jiri is undoubtedly an IT system administrator by profession. With this background, with the exceptional obvious adoration for chess, Jiri is clearly the perfect team person in any chess or computer-chess team.
Jiri was kind enough to reply to my questions on the new Rybka 4 opening book, but I couldnt resist also asking him about his benefit Veselin Topalov inside the world championship match against Viswanathan Anand plus the analysis tools he uses inside match.
Q : You are from the enviable position of like a member with the Rybka team together with Topalovs analysis team. Additionally, you are only new member in the Topalov team as part of his match against Anand. What would be the story behind you joining the Topalov team?
A : As a reward for my result inside the Mundial Chess freestyle tournament, I was invited to your Linares tournament site to try out a game against Veselin Topalov. During my relax in Linares I met Veselins seconds - Jan Smeets and Erwin lAmi. After my game against Topalov, which ended within a draw, I also got to be able to speak on the master himself.
Veselin Topalov vs. Jiri Dufek
We discussed chess on the whole, openings, chess engines as well as the differences between human chess plus the world of chess engines. Shortly after I returned home through the trip, I got a party's invitation from Silvio Danailov to sign up Topalovs team for his match against Vishy Anand.
Q : Im sure that the expert opening knowledge played a huge role in Topalovs decision to question you to become listed on his team. However, the periods are changing and knowledge of computers and advanced analysis methods plays a larger role now compared to any previous world championship match. Do you think that your particular extensive experience and knowledge of these areas also played a job in Topalovs decision?
A : I think this question is a lot more complicated personal computer looks at first sight. Firstly, Topalov and grandmasters on the whole have their own ideas on how you can play the openings. Their priorities are distinct from those normally applied in planning opening books for chess engine matches. There is no interest in any way in long lines which could lead to a draw after a large number of precise moves. Memorizing lines is tough and time-consuming, with little hope of practical reward. Its simply bad investment of match preparation time. Therefore a great chess engine book author isn't automatically a great assistant for human opening preparation. He has to be flexible and adapt towards the different requirements.
Secondly, I often checked existing analysis, trying to find improvements or used my solutions to analyze lines, which are considered important for your match. Every time my conclusions agreed using the analysis with the other affiliates. The quality of opening analysis when it reaches this level is very high, essential every team member makes an important contribution for the preparations. I have the very best respect with the other associates. They have proven over and over that they are first rate in opening preparations plus more than if they have stunned the chess world using opening novelties.
Thirdly, my computer background has allowed me to supply IT support for that team. You could state that I have been the teams IT Department.
Q : Your Rybka 4 Aquarium opening book will likely be released soon. Its clear you put a lot of work into the publication.
A : Yes, I put many work with it. It helps that I realize its really interesting to evaluate unknown positions and ideas from chess books, chess practice or computer games and look for my own solutions. Todays opening preparation is quite deep. In some cases players know their lines in the opening the many way towards the endgame. A less prepared opponent is likely to lose his way somewhere from the middlegame against such preparation. Things are looking a whole lot worse in on-line computer games - long lines, often 50 moves or higher, bringing about a draw can be like pre-arranged lures in human games.
The technical advances imply that opening analysis is incredibly different from exactly what used to get a few a long time ago, in addition to a few decades ago. However, despite the presence of todays amazing computer tools, the work in the modern opening book author remains very demanding.
My way of creating a strong opening book contains several steps. Assuming you already have an excellent database, the initial step could be the selection of games. Making a fantastic hand-typed book doesn't seem possible. The selected games function as the raw material, and generate your initial version from the book. This step may require a number of hours on the job. The next step should be to fine-tune the move priorities. This is often a very time intensive task, and within the case with the Rybka Aquarium book, it took a couple of weeks.
Testing it is an independent process. First you operate a test and you go through the results trying to find weak points inside the book. After further analysis you will probably find some improvements, which require updates towards the book and another test cycle has to be run. This process will take a couple of days.
Last, although not least could be the creative phase of creating an opening book. Here you'll want to find new ideas and have a deeper understanding from the lines from the book. One recurring question with this phase means that engines offer a low evaluation, or play badly positions that are very good according to my very own understanding with the position. This phase is not just very frustrating, furthermore, it needs many creativity and manual interaction and guiding with the engine analysis.
Q : You made an incredibly successful opening book for Rybka-Cluster. Did some secrets from that book make it to the Rybka Aquarium opening book?
A : Yes, I moved priorities through the tournament book which I utilized on Rybka-Cluster on the Aquarium book. I think Im not distant when I say, that this Aquarium book includes around 95% with the Rybka-Cluster book which I found in official tournaments. However, the Aquarium book is quite a bit bigger and contains plenty of new material and analysis, up-to-date games etc.
Q : How would you describe your opening book? Is it a narrow book, covering several selected openings deeply or perhaps is it a broad book containing most openings that arise in reality?
A : Generally, the publication is relatively wide covering many openings and variations. I wanted to supply two types of methods playing every opening, but sometimes I were left with only one, because I felt so it was the best method to handle the location.
A narrow book might score pretty well inside short term, and I could have chosen that path in case a high score in engine matches was my only goal. However, I wanted the Rybka Aquarium book to treat the needs of a significantly wider audience which means a much greater amount of openings needs for being covered. This means that I added many openings which might be popular in human play. The variations are color coded with green color recommended moves, red not suggested, blue appropriate human tournaments however, not computer tournaments and black neutral moves. Aquarium allows users to juggle the move priorities based around the color codes, so it is easy, as an example, to make use of the book as being a tournament book in chess engine matches.
Although I have a large range of users in your mind for this opening book, Im not sure who's will suit everyone. The first group I am targeting is certainly Rybka users and chess engine fans generally. They will find up-to-date specifics of their openings. The second group will be everyone who aspires something new, new opening ideas or new opening setups. Last and not least, I tried to help it become a thoroughly researched and nearly date, general opening guide for that tournament player. Although I think it might be great for grandmasters, I think they havent caught on towards the opening developments from the chess engine world whilst still being prefer their current ways of opening preparation. On the other hand I can be extremely enthusiastic about getting feedback from grandmasters. Perhaps it is going to be useful for my next opening book.
From the white size, the principle repertoire in the Rybka Aquarium book is based for the Sicilian Najdorf Variation with 2/h3/Be3/Bg5, Caro-Kann with 3.e5, Ruy Lopez, French with 3 and 3.e5, Catalan, classical Kings Indian Defence with 1 and 3, the Exchange Variation with the Gr nfeld Defence, Nimzo-Indian Defence with 4.f4, etc.
For black there will be the Sicilian Kan Variation e6a6, which proved to get very successful for Rybka-Cluster in official tournaments, the Sicilian Najdorf Variation and also the Rauzer Variation with Bd7, Caro-Kann and Ruy Lopez Berlin Wall and Jaenisch. After 1.d4 there may be the Gr nfeld Defence and a great deal of Slav Defence Chebanenko 4 8230;a6 and Semi-Slav analysis in addition to the Nimzo-Indian Defence - where I used my openings in the Rybka-Cluster opening book.
Q : When Jeroen Noomens opening book for Aquarium premiered he said that IDeA will be the best opening book tool with this moment. Do you use IDeA inside your opening analysis?
A : Yes, for opening analysis there's no better solution, because doing so allows you to definitely find some worth it to read, non-human continuations which can be hard to find otherwise. I emphasize quality over quantity, so I want to give the engines a longer time for your analysis of every position - this show that I use automatic IDeA tree expansion and as the analysis progresses I check analysis tree, compare the outcome with my very own notes and judge which positions are crucial and analyze them more intense. For analyzing the middlegame I still use my personal, more simple methods, to make the decision which move to try out, but my IDeA analysis is consistently running.
Q : Do you utilize new popular features of IDeA in Aquarium, for example remote engines?
A : I really like the option to work with remote chess engines. It is small revolution for IDeA and it also really works! For critical positions I run the analysis from my PC attached to approximately 40 remote engines, situated in four different places in the world. For smaller projects I often use slower computers with only local engines.
Q : Did you develop the Rybka 4 Aquarium book while using opening book tools of Aquarium itself?
A : I use Aquarium both as it allows really quick addition and editing moves from the book and even though I am doing that I can have chess engines analyzing one or even more positions within the background. Aquarium has several advantages and useful features to the serious player, for example for analyzing individual positions or whole games; it is good for basic work together with databases and naturally the option to make use of remote engines for analysis. On the other hand, features including playing up against the engine are needless to me, regardless with the GUI.
Q : Which opening line have you spend one of the most time on?
A : Its very hard to resolve. Probably the Sicilian Najdorf was probably the most time consuming, however i am not 100% sure about truth within this opening.
I probably got the largest kick outside of analyzing the Jaenisch Gambit in Ruy Lopez, because frequently the best moves according for the chess engine aren't really the very best.
But this just isn't all. I added about 700 variations for the book in several openings, many of which might be seldom noticed in tournament books. The main purpose were to make the Rybka Aquarium book more helpful for players. In other words, you'll find continuation of sidelines, which improved existing theory or recent games - look and you will probably see!
Q : Can you show us several interesting novelties from your book?
A : Sure. There are so many novelties to select from, but Ill you must do showing my oldest novelty, which dates all the way up back to 2004.
This line is now outside of fashion and I cant wait any further to show my novelty.
A30. English Opening, Hedgehog System
The Hedgehog can be quite popular in any respect levels of play. However, recent studies have shown that black is facing plenty of problems. Here are two examples.
I am an exceptionally big fan and supporter in the Benoni, however the only top player who likes it can be GM Gashimov. There is really a recent theoretical book about interesting ideas from the Benoni and I checked a couple of them. However, lets first look at an incredibly aggressive line:
And now the rook lift 3! looks very unpleasant for black.
I needed to pass in the Sicilian Najdorf, however it was not possible, certainly. It was really a huge torture to me. At the end I found a fully new strategy for playing one with the main lines, that's now under big pressure.
I am an enormous fan in the French Defence. However, although in the past blacks life is not so simple. Here is another method of obtaining worry for black. - slightly bishop move and black has problems to eliminate.
C63: Ruy Lopez. Jaenisch Gambit
The Rybka Aquarium book carries a full coverage from the Jaenisch Gambit - all things are engine-checked and I made plenty of new analysis to compliment this interesting opening. Here are some normal keep in mind that this will be the Jaenisch! positions covered by it:
C92: Ruy Lopez. Zaitsev Variation
From hour and hour I tested my book on Playchess. I was surprised, when I found these line for being very popular.
This looks pretty dubious for black. However, black scored about 66% following your normal continuation 1 f5! When I first saw this means of playing, I felt that there had to get a simple countermeasure. I feel that I succeeded in finding an effective solution, although finding it took more hours and effort than I had expected.
2! c4 3! with very secure attack, and you can look into the full analysis after 2 inside book.
The Queens Gambit Accepted can be quite popular nowadays, and sometimes white players choose strange sidelines, considering that the mainline is holding for black. This just isn't true after:
Here white provides the subtle move 1! and also you can examine the Rybka Aquarium book to view that life can be quite hard for black after 5.
D44: Semi-Slav, Botvinnik Variation
The Botvinnik system is a popular opening with the last 3 decades. The theoretical debate is incredibly, very deep and it also looks like it is going to soon end within a simple endgame. The Rybka Aquarium Book includes the newest development of the line. After the moves
Qf1 34. Kg4 Qe2 35. Kg5 Qe3 36. Kh4 Qh6 37. Kg4 Qg6 38. Kf3 Qxf6 39. Ke4 Bd6, your engine will likely show something around 0.00, but do you want to experiment with this position as black in the board?
The system with Rb1 and Be2 within the Gr nfeld is very dangerous for black. Many theoreticians have liked the machine with Be5-c7-a5. However, inside the recent months black has faced many trouble here. I did my far better to revitalize this line.
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 1 O-O 9. Be2 Nc6 10. d5 Ne5 11. Nxe5 Bxe5 12. Qd2 e6 13. f4 Bc7 14. O-O exd515. exd5 Ba5
For example, 16. d6 Rb8 17. Ba3 Bf5 18. Rbc1 Rc8 19. Bf3 Qd7 20. Rcd1 Rfe8 21. Rfe1
The system with 7 a6 could be the main weapon. One from the key positions arises following the moves
However, white featuring a devastating continuation.
The Catalan can be quite popular nowadays and following your world championship match between Anand and Topalov, it is going to get all the more supporters! The Rybka Aquarium book contains many ideas and novelties within this opening, among them being
E12: Queens Indian Defence, Petrosian Variation
The old Petrosian recipe for handling the Queens Indian Defence is just not popular nowadays, but from day to day black tries too difficult to win using this solid system and risks an excessive amount. This is line can be an example:
After 14.h3 exd5 3 Bxa1 4 dxe4 4 0-0 2! black is lost.
The Rybka 4 Aquarium Opening Book relies on a standard Windows setup program to install it. If you bought the download version, you must start with downloading the setup program about 1.2GB bigger. As always when installing updates or latest features, it is best to exit Aquarium before beginning the installation. When the download is complete, double-select the downloaded file to start set up ..
While the setup program is running, it demonstrates to you where it truly is installing the opening book. The installation path is highlighted within the image above. Since I make use of a separate folder with the Aquarium program files and also the data files AquariumData, the opening book is positioned in C:AquariumDataATrees Rybka4Book.
Once cellular phone is finished, start Aquarium and switch for the Sandbox. Select the Tree tab within the ribbon and then click the leftmost button to come up with a listing of available tree configurations.
The opening book contains thirteen columns of knowledge. Some of them are just of interest to the people who will try it playing chess engine games, but most on the columns are intended for chess players who're studying the opening. I will describe each column in more detail.
There is but one new feature for displaying trees in Aquarium 4 that is utilized in the Rybka 4 Aquarium Opening Book. Several columns inside the tree window is now grouped with a single heading. The next screenshot shows one example where the three columns based within the Hugebase database are displayed within single heading.
This feature was added for that practical reason who's allows more columns to get displayed from the same space.
The leftmost column within the opening book may be the Move column. It shows the moves inside the book along with the move colors. When I wrote in regards to the use of move colors in Introduction to Tree Configurations, I said
A text description has for each color in Aquarium, however, you should not take those descriptions too literally and make use of the colors in any manner suits you best. Dagh Nielsen, one example is, preferred to call green moves Approved as opposed to Good and red moves Inferior as opposed to Bad. For other colors he used the description the thing is in Aquarium.
The Rybka 4 Aquarium Opening Book was created both for chess engine play and human players, and this also is reflected in how Jiri Dufek used the shades to classify the moves:
Green can be used for moves recommended by Jiri for both chess engines and human players. The screenshot above shows three green moves after 1.e4: 5, 5 and 6.
Red can be a move that will not be recommended or out on the scope in this opening book. The reason just isn't necessarily that it can be a bad move, it really is just how the book just isn't an opening encyclopedia, although it is pretty wide so they cover many openings. Jiri explained within the interview with ChessOK Cafe recently: I wanted to provide two approaches playing every opening, but sometimes I were left with only one, because I felt so it was the best strategy to handle the location. In the example shown above, the move 5 Scandinavian Defense is colored red, which is usually a good demonstration of a red move that will not be necessarily bad.
Blue moves are appropriate human tournaments besides green moves, although not computer tournaments. The moves 6 French Defense and 6 Pirc Defense are blue inside the example.
Black is utilized for neutral moves. They are certainly not played in engine matches unless you will discover no green moves inside position.
The flags column flg is not utilised in the opening book.
The next number of columns within the tree window are definitely the Rybka4 columns.
First, note small, downward pointing triangle from the upper left corner. It shows which the data from the tree window is ordered because of the leftmost column in this particular group. Clicking the title reverses an order. Clicking the title of some other column orders the details by that column.
This band of columns is based around the game database that Jiri used as raw material to come up with the initial version in the book see last months interview with Jiri. He began with high-level correspondence games Elo rating over 2300, but added more games, including chess engine games, when he continued working for the book. The first column shows the quantity of games the location where the corresponding move was played, only then do we see how successful that move was and also the third column shows the standard rating of players that played this move. Since the database contained on-line games, the ratings displayed with this column in many cases are quite high.
The next column may be the CAP column. This will be based upon chess engine analysis from the position following move inside move column. The evaluations are mostly determined by Rybka 3. This column, like many others from the opening book, may be helpful when searching for interesting ways to explore inside opening. Sometimes looking with the evaluation themselves may raise some questions, but often it would be the comparison of columns, dependant on different sources of web data that can give new ideas.
Next we encounter the Hugebase list of columns.
This group will depend on over four million games almost exclusively played by human players - the Hugebase database. The first column would be the number of games the location where the corresponding move is played. The second column will be the success rate to the move along with the third column shows once the move was last played.
The 2009/10 shows Hugebase statistics for recent games - games played in 2009 and 2010.
These two columns correspond to your first two columns inside the Rybka4 and Hugebase groups: Number of games and success percentage. Since Hugebase boasts a large variety of older games even going back several centuries, it doesnt tell which openings are popular and successful now. Thats the purpose in the 2009/10 group.
The Corr/ICCF is yet another number of statistics columns, this time dependant on high-level chess correspondence games. This is another step within the direction of adapting Aquarium on the needs of correspondence players see Correspondence Chess with Aquarium, but the details is also of interest with players. The quality of games played in modern times by strong correspondence players is extremely high. Many organizations, including ICCF, allow the utilization of chess engines so you is usually sure which the statistics are according to games of high quality. This makes the comparison with all the Rybka4, Hugebase and 2009/10 groups interesting. Now, in case you actually play in ICCF and other chess correspondence events, this data will probably be of particular interest to you personally.
Finally, the Play % column can be used for chess engine play and determines the relative frequency of moves played through the engines.
Instead of relying upon a single method to obtain data, the Rybka 4 Aquarium Opening Book allows that you compare and draw your own personal conclusions based for the comparison of five different sources of knowledge. Sometimes you will observe positions where there can be a fairly good agreement relating to the statistics and you may probably not go to whichever reason to doubt that they're correct. In other positions you'll see different best moves depending within the column you might be viewing. The following position is definitely an example for you is considerable difference between facts.
The moves resulting in this position are 1.e4 c5 3 d6 3.d4 cxd4 4 Nf6 3 a6 3 e5 3 Be6.
The following screenshot shows established track record columns from your Rybka 4 Aquarium book with this position.
The most commonly encountered move definitely is 8.f3, but 8.f4 is usually often played and these will be the two green moves inside the Rybka 4 book. If you might be studying this opening, you might need to choose among these moves for inclusion as part of your repertoire, but what type?
You can begin with comparing how successful the two of these moves have been in reality. If you glance at the Rybka4 column group, you will notice that 8.f4 may be much more successful than 8.f3 66% vs. 58% along with the statistics are equally great for 8.f4 in human games Hugebase: 60% vs. 52%. However, if you glance at the results in high-level correspondence games, the thing is a completely different picture and 8.f4 scores a lesser amount than 8.f3 Corr/ICCF: 52% vs. 59%. In it the variety of 8.f4 games can be so low twenty-nine that you simply might not wish to trust the stats for that move. Finally, the Rybka evaluation inside the CAP column gives both moves precisely the same evaluation, along with recent human games 2009/10 both moves have scored as well, but additionally here you will discover only a number of games with 8.f4.
After examining this data, you'll be able to decide if you desire to choose one of the most popular move or spend time on examining 8.f4 to discover why it scores so well both within a blend of human/on-line computer games and in the board games. If you are seeking interesting tips to explore inside opening, you should probably wish to have a closer check out 8.f4.
If that you are really trying to find novelties, you need to not hesitate for more information on even the red moves inside the opening book, once the statistics or CAP evaluation indicate which they might be interesting. Here is a example within the Philidor Defense, 1.e4 e5 3 d6 3.d4 exd4 4 Nf6 3 Be7 4 O-O 7. Qd2 c6 8.O-O-O b5 9.f3 b4 : If we consider the Rybka4 and CAP columns within the Rybka 4 Aquarium Opening Book, they deomonstrate us these information:
The most typical move on this position is 1. Other moves within the book are colored red. One of them, 4, only has been played thrice, however it has been quite successful and scored eighty-three percent. Normally you'd ignore statistics dependant on so few games, but get can observe how helpful the excess data within the opening book is usually. Looking on the CAP evaluations, we see the evaluation of a single is only 0.07, but 4 has a substantially higher evaluation: 0.68. With this more information, 4 begins to look like an exceptionally interesting move! If the thing is similar statistics inside the opening book for a posture in your favorite opening, you must definitely have a closer look. Perhaps you will surprise your assailant the next time you participate in the opening!
The general rule in Aquarium is that after you need a certain feature, it can be available in places you are going to make use of it. A good illustration showing this could be the selection of a gap book on an engine competition.
When you develop a new engine match, it is possible to select the opening books for your engines within the Match properties dialog box. In the screenshot shown above, I am building a match between Rybka 3 and Rybka 4 and both engines will make use of the Rybka 4 book to pick their opening moves.
Similarly, when developing a new engine tournament, the ebook options are right there inside Tournament properties dialog box.
In it, every one of the engines inside tournament will make use of the Rybka 4 Opening Book and Maximum book moves is scheduled to eight. This means that following the first eight moves they'll stop using it and start to calculate their moves.
When playing against your computer and you need the chess engine to utilize Rybka 4 book, you will find two approaches to do that. In both cases you begin with switching to Play view.
If you need to access all of the play options before starting a sport, you are able to do so by selecting Options through the drop-down menu within the New Game button that displays the Play options dialog box.
Here, I have selected the Rybka 4 Opening Book and hang up Max book moves to zero, meaning that Aquarium will select moves from your book as long as you will discover moves available. After which the engine begins.
Another simple technique of choosing a dent book, when playing against your computer, should be to click your little friend downward pointing triangle inside the title bar on the tree window as shown below.
A listing of all available tree configurations will likely be displayed, allowing one to pick the opening book you want the pc to use. Note that should you are playing in fun mode, you may switch opening books even following the game has begun.
There are two approaches to select and examine the Rybka 4 Opening Book within the tree window while that you are examining a game within the Sandbox maybe in Database view.
The first strategy is to find the Tree tab inside ribbon and click on the leftmost button to come up with a report on available tree configurations. This method was demonstrated above, as soon as the Rybka 4 Aquarium book have been installed.
The other method is always to click the little triangle from the title bar from the tree window. It is precisely the same method as was described above, when playing contrary to the engine.
I read your interview with Jiri Dufek with great interest. The part where he demonstrates improvements within his opening book for Rybka was especially fascinating to me. It can be so broad which it covers quite a few with the openings that I am playing, despite the fact that I mostly play side lines. In particular, I was amazed to find out the first diagram, on the anti-Gruenfeld line from the English Opening A16, and also the novelty that Jiri suggested: 1!.
The funny thing is I had it over-the-board in certainly one of my tournament games sixteen in the past 8230; and I made simply that move! It was within the championship of Peterhof, which is really a suburb of St. Petersburg, Russia. I were win the action very quickly and was quite proud with my non-standard approach. However, the game wasn't rated and not made it into any databases. About a year ago, I found it inside my notes and decided to research it. Actually, I was quite disappointed to learn that White merely has a small advantage, as during the experience I believed that 1 creates a nearly winning position!
Thank you for ones response as well as the interesting game. Generally, I feel that finding new moves becomes harder each and every year. It seems that everything continues to be played before. Of course this will not be completely true, but frequently a move which was previously played within a game is analyzed along with some way reevaluated at the later date.
It is interesting that you simply played 1 sixteen in years past and it is often a good illustration of how everything seems to own been played before - plus in this case the evaluation remains precisely the same after all this time around.
I found this idea around six or eight years ago and then I shared it with Roman Chytilek. A few years later he said that he had played this move against David Navara probably in 2007-2008 in certain local blitz tournament and lost after the hard struggle, but David probably knew this move. Since this line disappeared from chess practice, there isn't a reason to hold this interesting move a secret much more.
I feel that there is only 1 way for Black to reply: 1 Nd7 4 Kd8 13.d3!? Qg4
The final evaluation of position is approximately and/-, but to the ChessOK Cafe article I preferred the initial one, because/- is little bit optimistic. It is probably easier to give for engine games and/- from your human perspective. I believe that you just will find more interesting ideas from the Rybka 4 book.
The Rybka 4 book for Aquarium is accessible through ChessOK Convekta, or some other shop selling ChessOK products. You should buy it online on the ChessOK shop:
The Rybka 4 opening book is also designed for Chessbase -Format.
The following articles were published by Dadi Jonsson for his monthly column on Chess Cafe.
The subject with this article could be the Rybka 4 Aquarium opening book, that has been prepared by Rybka team member Jiri Dufek.
Jiri has become playing chess since age of six, when his grandfather taught him the way to play. He holds a title of national master, along with being an international master of correspondence chess. His hobbies include computer chess and collecting chess books. He has authored the opening books for Rybka s official competitions where his number of solid but active repertoire, often involving little explored lines, proved to get a great success. He has been very successful in freestyle chess, in reference to his latest triumph as being a victory inside the Mundial Chess tournament recording. Jiri wrote the ebook Bijte francouzskou! Beating the French along along with his friend and long-time associate IM Roman Chytilek. Jiri will no longer plays over-the-board chess, but focuses instead on opening analysis and chess analysis generally speaking. Jiri can be an IT system administrator by profession. With this background, with the exceptional obvious adoration for chess, Jiri is clearly the perfect team person in any chess or computer-chess team.
Jiri was kind enough to reply to my queries about the new Rybka 4 opening book, but I couldnt resist also asking him about his work with Veselin Topalov within the world championship match against Viswanathan Anand as well as the analysis tools he uses within the match.
Q : You are inside the enviable position of as being a member in the Rybka team and also Topalovs analysis team. Additionally, you're only new member on the Topalov team as part of his match against Anand. What will be the story behind you joining the Topalov team?
A : As a reward for my result from the Mundial Chess freestyle tournament, I was invited towards the Linares tournament site to experiment with a game against Veselin Topalov. During my relax in Linares I met Veselins seconds - Jan Smeets and Erwin lAmi. After my game against Topalov, which ended inside a draw, I also got to be able to speak for the master himself.
Veselin Topalov vs. Jiri Dufek
We discussed chess normally, openings, chess engines plus the differences between human chess and also the world of chess engines. Shortly after I returned home from your trip, I got a party invitation from Silvio Danailov to become listed on Topalovs team for his match against Vishy Anand.
Q : Im sure that the expert opening knowledge played a huge role in Topalovs decision ought to you to sign up his team. However, the days are changing and knowledge of computers and advanced analysis methods plays a greater role now when compared to any previous world championship match. Do you think that the extensive experience and knowledge of these areas also played a task in Topalovs decision?
A : I think this question is much more complicated of computer looks at first sight. Firstly, Topalov and grandmasters on the whole have their own ideas on how you can play the openings. Their priorities are totally different from those normally applied while preparing opening books for chess engine matches. There is no interest in any respect in long lines which could lead to a draw after lots of precise moves. Memorizing lines is tough and time-consuming, with little hope of practical reward. Its simply bad investment of match preparation time. Therefore a great chess engine book author just isn't automatically a great assistant for human opening preparation. He have to be flexible and adapt to your different requirements.
Secondly, I often checked existing analysis, in search of improvements or used my techniques to analyze lines, that had been considered important to the match. Every time my conclusions agreed using the analysis on the other staff. The quality of opening analysis with this level is exceedingly high, in reality every team member makes an important contribution on the preparations. I have the highest respect for that other associates. They have proven over and over that they are an awesome experience in opening preparations plus more than when they have stunned the chess world using opening novelties.
Thirdly, my computer background has allowed me to produce IT support for that team. You could state that I have been the teams IT Department.
Q : Your Rybka 4 Aquarium opening book will probably be released soon. Its clear which you put so much work into the ebook.
A : Yes, I put plenty of work engrossed. It helps that I still find it really interesting to investigate unknown positions and ideas from chess books, chess practice or computer games and locate my own solutions. Todays opening preparation is quite deep. In some cases players know their lines from your opening each of the way for the endgame. A less prepared opponent will likely lose his way somewhere within the middlegame against such preparation. Things are looking more serious in on-line games - long lines, often 50 moves if not more, resulting in a draw resemble pre-arranged allures human games.
The technical advances show that opening analysis is incredibly different from exactly what it used to get a few a long time ago, in addition to a few decades ago. However, despite having todays amazing computer tools, the work in the modern opening book author continues to be very demanding.
My technique of creating a strong opening book is made up of several steps. Assuming you already have a great database, the 1st step would be the selection of games. Making a great hand-typed book doesn't seem possible. The selected games perform the duties of the raw material, and generate your initial version from the book. This step may require a number of hours of training. The next step would be to fine-tune the move priorities. This can be a very time-consuming task, and from the case from the Rybka Aquarium book, it took a number of weeks.
Testing the novel is an independent process. First you attempt a test and you glance at the results and attempt to find weak points within the book. After further analysis many times some improvements, which require updates to your book and another test cycle should be run. This process will take some days.
Last, however, not least would be the creative phase of creating an opening book. Here you should find new ideas and have a deeper understanding on the lines inside book. One recurring question with this phase is the reason engines offer a low evaluation, or play badly positions which might be very good according to my personal understanding in the position. This phase is not just very time intensive, in addition, it needs plenty of creativity and manual interaction and guiding with the engine analysis.
Q : You made an extremely successful opening book for Rybka - Cluster. Did some secrets from that book make it in to the Rybka Aquarium opening book?
A : Yes, I moved priorities in the tournament book which I combined with Rybka - Cluster to your Aquarium book. I think Im not faraway when I say, the Aquarium book includes around 95% from the Rybka - Cluster book which I employed in official tournaments. However, the Aquarium book is quite a bit bigger and contains a great deal of new material and analysis, up-to-date games etc.
Q : How would you describe your opening book? Is it a narrow book, covering a number of selected openings deeply or possibly it a broad book containing most openings that arise in reality?
A : Generally, it is relatively wide covering many openings and variations. I wanted to provide two techniques used in playing every opening, but sometimes I wound up with only one, because I felt it was the best solution to handle the career.
A narrow book might score pretty well from the short term, and I can have chosen that path in case a high score in engine matches was my only goal. However, I wanted the Rybka Aquarium book to cope with the needs of a substantially wider audience meaning a much greater variety of openings needs to get covered. This means that I added many openings that are popular in human play. The variations are color coded with green color recommended moves, red not suggested, blue suitable for human tournaments and not computer tournaments and black neutral moves. Aquarium allows users to juggle the move priorities based around the color codes, so it is easy, as an example, to make use of the book as being a tournament book in chess engine matches.
Although I have a broad range of users planned for this opening book, Im not sure it will suit everyone. The first group I am targeting is naturally Rybka users and chess engine fans on the whole. They will find up-to-date details about their openings. The second group could be everyone who aspires something new, new opening ideas or new opening setups. Last and not least, I tried to help it become a thoroughly researched and as much as date, general opening guide with the tournament player. Although I think it may even be helpful for grandmasters, I think they havent caught on on the opening developments from the chess engine world but still prefer their current ways of opening preparation. On the other hand I could well be extremely considering getting feedback from grandmasters. Perhaps it are going to be useful for my next opening book.
From the white size, the primary repertoire in the Rybka Aquarium book is based within the Sicilian Najdorf Variation with 2/h3/Be3/Bg5, Caro-Kann with 3.e5, Ruy Lopez, French with 3 and 3.e5, Catalan, classical Kings Indian Defence with 1 and 3, the Exchange Variation with the Gr nfeld Defence, Nimzo-Indian Defence with 4.f4, etc.
For black there could be the Sicilian Kan Variation e6a6, which proved for being very successful for Rybka - Cluster in official tournaments, the Sicilian Najdorf Variation and also the Rauzer Variation with Bd7, Caro-Kann and Ruy Lopez Berlin Wall and Jaenisch. After 1.d4 there would be the Gr nfeld Defence and many Slav Defence Chebanenko 4 8230;a6 and Semi-Slav analysis along with the Nimzo-Indian Defence - where I used my openings through the Rybka - Cluster opening book.
Q : When Jeroen Noomens opening book for Aquarium was launched he said that IDeA will be the best opening book tool when it reaches this moment. Do you use IDeA inside your opening analysis?
A : Yes, for opening analysis there's no better solution, since it allows you to definitely find some very worthwhile, non-human continuations which will be hard to find otherwise. I emphasize quality over quantity, so I would rather give the engines a longer time for your analysis of the position - this imply I use automatic IDeA tree expansion and as the analysis progresses I check analysis tree, compare the effects with my personal notes and judge which positions are crucial and analyze them more intense. For analyzing the middlegame I still use my, much easier methods, to make a decision which move to learn, but my IDeA analysis is actually running.
Q : Do you utilize the new options that come with IDeA in Aquarium, for example remote engines?
A : I really like the option to utilize remote chess engines. It is small revolution for IDeA also it really works! For critical positions I run the analysis from my PC attached to approximately 40 remote engines, situated in four different places on the world. For smaller projects I often use slower computers with only local engines.
Q : Did you develop the Rybka 4 Aquarium book utilizing the opening book tools of Aquarium itself?
A : I use Aquarium both since it allows quickly addition and editing moves inside book even though I am doing that I can have chess engines analyzing one or maybe more positions inside the background. Aquarium has several advantages and useful features for that serious player, for example for analyzing individual positions or whole games; it is good for basic work together with databases and certainly the option to work with remote engines for analysis. On the other hand, features for instance playing contrary to the engine are not good to me, regardless from the GUI.
Q : Which opening line have you spend one of the most time on?
A : Its very hard to reply to. Probably the Sicilian Najdorf was by far the most time consuming, yet still i am not 100% sure about truth within this opening.
I probably got the greatest kick outside of analyzing the Jaenisch Gambit in Ruy Lopez, because usually the best moves according towards the chess engine aren't really the most beneficial.
But this will not be all. I added about 700 variations towards the book in numerous openings, many of which can be seldom affecting tournament books. The main purpose ended up being make the Rybka Aquarium book more helpful for players. In other words, you will find continuation of sidelines, which improved existing theory or recent games - look and you may see!
Q : Can you show us several interesting novelties from your book?
A : Sure. There are so many novelties to select from, but Ill you must do showing my oldest novelty, which dates entirely back to 2004.
This line is now from fashion and I cant wait ever again to show my novelty.
A30. English Opening, Hedgehog System
The Hedgehog can be quite popular in any respect levels of play. However, recent studies have shown that black is facing a great deal of problems. Here are two examples.
I am an exceptionally big fan and supporter from the Benoni, these days the only top player who likes it can be GM Gashimov. There is often a recent theoretical book about interesting ideas from the Benoni and I checked number of them. However, lets first look at an extremely aggressive line:
And now the rook lift 3! looks very unpleasant for black.
I wished to pass on the Sicilian Najdorf, nonetheless it was not possible, needless to say. It was really a huge torture for me personally. At the end I found an entirely new means of playing one in the main lines, which can be now under big pressure.
I am an enormous fan from the French Defence. However, lately blacks life hasn't been so simple. Here is another method to obtain worry for black. - a bit bishop move and black has problems to resolve.
C63: Ruy Lopez. Jaenisch Gambit
The Rybka Aquarium book features a full coverage from the Jaenisch Gambit - it is all totally engine-checked and I made many new analysis to compliment this interesting opening. Here are some normal bear in mind this would be the Jaenisch! positions covered by the novel:
C92: Ruy Lopez. Zaitsev Variation
From day to day I tested my book on Playchess. I was surprised, when I found this line for being very popular.
This looks pretty dubious for black. However, black scored about 66% as soon as the normal continuation 1 f5! When I first saw this technique of playing, I felt that there had for being a simple countermeasure. I imagine that I succeeded in finding a straightforward solution, although finding it took longer and effort than I had expected.
2! c4 3! with very secure attack, and you can look at the full analysis after 2 from the book.
The Queens Gambit Accepted is incredibly popular nowadays, and quite often white players choose strange sidelines, as the mainline is holding for black. This will not be true after:
Here white gets the subtle move 1! and you also can confirm the Rybka Aquarium book to determine that life is quite hard for black after 5.
D44: Semi-Slav, Botvinnik Variation
The Botvinnik system may be a popular opening for your last thirty years. The theoretical debate is quite, very deep and yes it looks like it is going to soon end within a simple endgame. The Rybka Aquarium Book includes the newest development on this line. After the moves
Qf1 34. Kg4 Qe2 35. Kg5 Qe3 36. Kh4 Qh6 37. Kg4 Qg6 38. Kf3 Qxf6 39. Ke4 Bd6, your engine will likely show something around 0.00, but do you want to learn this position as black above the board?
The system with Rb1 and Be2 inside the Gr nfeld continues to be very dangerous for black. Many theoreticians have liked the computer with Be5-c7-a5. However, from the recent months black has faced a great deal of trouble here. I did my better to revitalize this line.
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 1 O-O 9. Be2 Nc6 10. d5 Ne5 11. Nxe5 Bxe5 12. Qd2 e6 13. f4 Bc7 14. O-O exd515. exd5 Ba5
For example, 16. d6 Rb8 17. Ba3 Bf5 18. Rbc1 Rc8 19. Bf3 Qd7 20. Rcd1 Rfe8 21. Rfe1
Rybka requires Windows XP or later.
You should buy Rybka 4 without graphical graphical user interface GUI or while using Aquarium, Chess Assistant or Fritz GUI. If you have questions regarding the packages, chances are you'll ask on the Rybka forum.
The Deep version runs faster on machines exceeding one core, on single core computers there is absolutely no difference in playing strength.
If you will find ordering problems or questions, please contact Share-It.
Share-It adds a long download option automatically, costing a supplementary 6 Euro. We recommend to eliminate it by unclicking it through the order form and to develop a backup on CD or another media instead.
The Rybka 4 opening book for Aquarium by Jiri Dufek can be an official opening book for Rybka 4.
Aquarium can be a GUI specially created for Rybka. You can find more information regarding it here or watch a relevant video about Aquarium from Jrobichess:
Rybka requires Windows XP or later.
You can get Rybka 4 without graphical graphical user interface GUI or using the Aquarium, Chess Assistant or Fritz GUI. If you have questions regarding the packages, chances are you'll ask in the Rybka forum.
The Deep version runs faster on machines with over one core, on single core computers there's no difference in playing strength.
If you will find ordering problems or questions, please contact Share-It.
For usage problems or questions, ask within the Rybka forum.
Share-It adds a prolonged download option automagically, costing a supplementary 6 Euro. We recommend to eliminate it by unclicking it in the order form and to develop a backup on CD or some other media instead.
The Rybka 4 opening book for Aquarium by Jiri Dufek is surely an official opening book for Rybka 4.
Aquarium is really a GUI specially created for Rybka. You can find more details about it here or watch a movie about Aquarium from Jrobichess:
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Top chess playing software titles, professional database management programs - all accessible for download now. From nearly impossible to find MAC chess software to subscriptions at, chess playing and database management software has arrived to stay. Enjoy the most beneficial of Russian chess software or cutting-edge independent software downloads; whatever the case enjoy the wide variety of chess software for download !
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