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Infinite Analysis may be the oldest plus the most common kind of analysis, held by many GUIs. It is enhanced with unique features, including Infinite Analysis History. If you think maybe you have analyzed an appealing position 2 months ago, you shouldn't have to guess. Just take a fast look for the Infinite Analysis History.
Analysis is saved in a chess tree which is often viewed inside tree window.
Multiple chess engines could be run simultaneously in both one window or perhaps in seperate windows.
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Rybka 4 Aquarium reads and converts one of 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 with the ChessOK Playing Zone.
Broadcasts of the key chess events within the Playing Zone, with live Rybka analysis.
Flexible concept of time-controls.
Opening book selection and maximum volume of moves played from book.
Start on the standard starting position or other position.
Rybka Randomizer matches might give you the correct answer with your analysis that you suspect how the engine evaluates a positions incorrectly.
Now you may create your own chessbooks iBooks. It s a regular chessbook, in places you can insert diagrams and hyperlinks, and firstly notation with variations that happen to be displayed about the board. So any DSN-database could be converted to a convenient book and also be exported in a blog!
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There s numerous procedures which you d like perform with your databases and trees, but they're too special to get implemented in Aquarium. So why not to implement it yourself? With Aquarium Scripter you get access to any data that suits you and process it in any form you prefer. Just do it s easy!
Rybka 4 could be the strongest chess engine as well as the 2008 computer chess world champion. It dominates all independent computer chess rating lists with ELO rating of 3150.
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Rybka 4 Aquarium and Deep Rybka 4 Aquarium the modern Aquarium GUI while using latest along with the strongest chess playing engines. Rybka 4 Aquarium is suggested for the users having only one core CPU within the computer. For reaching maximum strength for 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 rather than Rybka 4 engine. You may upgrade without cost Aquarium 2010 GUI to the modern Rybka 4 Aquarium GUI by downloading and installing 4.0.5 update package of Aquarium
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Rybka 4 Aquarium revolutionary analysis and database tool, together with the worlds strongest chess playing engine, Rybka 4.
Aquarium offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and even more.
Infinite Analysis would be the oldest and also the most common sort of analysis, based on many GUIs. It is enhanced with unique features, including Infinite Analysis History. If you think you might have analyzed an intriguing position 60 days ago, you shouldn't have to guess. Just take a rapid look for the Infinite Analysis History.
Analysis is held in a chess tree which may 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 information regarding infinite analysis has arrived.
IDeA Interactive Deep Analysis is really a new, unique and powerful analysis method. IDeA examines employment and then follows the main moves automatically to produce a tree of variations. It just keeps on crawling the variations inside an intelligent way, adding more analysis, and do not stops unless you tell it to.
Powerful interactive features enable you to influence the search.
Analysis could be focused on moves and variations that you just consider important.
Overnight analysis produces plenty of analyzed positions.
IDeA stores the outcome in a chess tree on your own hard disk.
Even should your computer crashes your complete analysis will likely be there whenever you turn it on again.
Analysis may be stopped whenever you like, and resumed afterwards.
IDeA uses the outcome of previous analysis, although you may start from some other 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 posture just once and you should see your annotations everywhere the identical position happens.
All info that's needed to annotate games can be used.
Rybka 4 Aquarium reads and converts probably 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 with 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 with the ChessOK Playing Zone.
Broadcasts of the main chess events within the Playing Zone, with live Rybka analysis.
Flexible concise explaination time-controls.
Opening book selection and maximum variety of moves played from book.
Start in the standard starting position and other position.
Rybka Randomizer matches may give you the correct answer inside your analysis in places you suspect how the engine evaluates a positions incorrectly.
Now you could make your own chessbooks iBooks. It s a normal chessbook, in places you can insert diagrams and hyperlinks, and to begin with notation with variations which can be displayed for the board. So any DSN-database might be converted right into a convenient book and also be exported in a blog!
The full iBook documentation will be here.
There s several procedures that you just d like perform in your databases and trees, but you are too special to get implemented in Aquarium. So why not to implement it yourself? With Aquarium Scripter wholesome access to any data you prefer and process it in any form you prefer. Just test it s fairly simple!
Rybka 4 will be the strongest chess engine and also 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 the most of Rybka s strength.
Rybka 4 is UCI engine, and therefore it could be taken from Aquarium and associated with any chess program, supporting UCI protocol, like Fritz Chessbase or Arena.
Compare for some other Aquarium Packages what s the main difference between Aquarium 2010 and Aquarium 4?
Rybka 4 Aquarium and Deep Rybka 4 Aquarium the modern Aquarium GUI together with the latest as well as the strongest chess playing engines. Rybka 4 Aquarium is suggested for the users having only 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 as opposed to Rybka 4 engine. You may upgrade totally free Aquarium 2010 GUI to the most up-to-date Rybka 4 Aquarium GUI by downloading and installing 4.0.5 update package of Aquarium
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Deep Rybka Aquarium 2011 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and even more.
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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
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Full Windows 10, 8, 7 32 64 bit and Vista compatibility.
Updated Deep Rybka 4.1 engine
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Aquarium is usually a modern graphical user interface GUI intended for Rybka with full support due to the features, including randomizer matches, persistent hash and sampled search.
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A database with more than 4, 700, 000 games
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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 and even more.
Deep Rybka 4.1 engine - World Computer Chess champion and rating lists leader. Deep Rybka 4.1 may be also utilised in Fritz along with 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 up to now April 2011 databases, trees and CAP evaluations.
IDeA is a lot faster plus much more intellectual.
Infinite analysis and IDeA are integrated to figure together inside the games.
Result of infinite analysis of engines can be held in different trees.
ChessOK Playing Zone client for playing chess by network is incorporated into installation package. It includes twelve months 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 user interface GUI made for Rybka with full support due to the 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 at the identical time for faster results
Infinite Analysis might be more flexible previously with analysis presets. Use many engines at precisely the same time, all analyzing a similar position or different games.
State in 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 craigs list 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 around get details about 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 rather be sent to your e-mail within 1 day.
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 might be also utilised in Fritz along with other 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.
Updated Deep Rybka 4.1 engine
Up up to now April 2011 databases, trees and CAP evaluations.
IDeA is quite a bit faster and even more intellectual.
Infinite analysis and IDeA are integrated to function together inside games.
Result of infinite analysis of numerous engines can be saved in different trees.
ChessOK Playing Zone client for playing chess by network is built-into installation package. It includes twelve months 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 is often a modern graphical user interface GUI made for Rybka with full support for the 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 at exactly the same time for faster results
Infinite Analysis is much more flexible than previously with analysis presets. Use many engines at the identical time, all analyzing the identical position or different games.
State in 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. before 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 and even more.
Deep Rybka 4.1 engine - World Computer Chess champion and rating lists leader. Deep Rybka 4.1 could be also employed 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 as of yet April 2011 databases, trees and CAP evaluations.
IDeA is quite a bit faster plus much more intellectual.
Infinite analysis and IDeA are integrated to figure together within the games.
Result of infinite analysis of engines can be saved in different 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 user interface GUI made for Rybka with full support for the 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 at the identical time for faster results
Infinite Analysis is a lot more flexible than in the past with analysis presets. Use many engines at the identical time, 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 craigs list 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 Engine Matches and Tournaments, Part One
The following articles were authored by Dadi Jonsson for his monthly column on Chess Cafe.
The subject with this article may be the Rybka 4 Aquarium opening book, that has been prepared by Rybka team member Jiri Dufek.
Jiri has become playing chess considering that the age of six, when his grandfather taught him tips on how to play. He holds a title of national master, and also 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 number of solid but active repertoire, often involving little explored lines, proved to become a great success. He has been very successful in freestyle chess, along with his latest triumph like 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 not 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, and his awesome obvious desire for chess, Jiri is clearly the perfect team person in any chess or computer-chess team.
Jiri was kind enough to respond my queries about the new Rybka 4 opening book, but I couldnt resist also asking him about his be employed by Veselin Topalov from the world championship match against Viswanathan Anand plus the analysis tools he uses from the match.
Q : You are inside enviable position of like a member in the Rybka team along with Topalovs analysis team. Additionally, you're the only new member with the Topalov team in their match against Anand. What could 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 experience 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 the chance to speak for the master himself.
Veselin Topalov vs. Jiri Dufek
We discussed chess generally, openings, chess engines plus the differences between human chess and also the world of chess engines. Shortly after I returned home in the trip, I got an invite from Silvio Danailov to participate in Topalovs team for his match against Vishy Anand.
Q : Im sure that the expert opening knowledge played a large role in Topalovs decision to question you to become listed on his team. However, the days are changing and knowledge of computers and advanced analysis methods plays a more impressive 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 task in Topalovs decision?
A : I think this question might be more complicated personal computer looks at first sight. Firstly, Topalov and grandmasters on the whole have their own ideas on the best way to play the openings. Their priorities are totally different from those normally applied in readiness opening books for chess engine matches. There is no interest in any way in long lines which might lead to a draw after a multitude of precise moves. Memorizing lines is very and time-consuming, with little hope of practical reward. Its simply bad investment of match preparation time. Therefore a fantastic chess engine book author isn't automatically a fantastic assistant for human opening preparation. He need to be flexible and adapt for the different requirements.
Secondly, I often checked existing analysis, trying to find improvements or used my techniques to analyze lines, that had been considered important with the match. Every time my conclusions agreed with all the analysis on the other affiliates. The quality of opening analysis when it reaches this level is exceedingly high, in reality every team member makes an important contribution on the preparations. I have the very best respect for that other associates. They have proven continuously that they are an awesome experience in opening preparations and much more than when they have stunned the chess world using opening novelties.
Thirdly, my computer background has allowed me to supply IT support for the team. You could state that I have been the teams IT Department.
Q : Your Rybka 4 Aquarium opening book is going to be released soon. Its clear you put plenty of work into the novel.
A : Yes, I put many work in it. It helps that I think it is really interesting to evaluate unknown positions and ideas from chess books, chess practice or online games and find my own, personal solutions. Todays opening preparation can be quite deep. In some cases players know their lines through the opening each of the way on the endgame. A less prepared opponent will likely lose his way somewhere inside middlegame against such preparation. Things are looking worse in on-line computer games - long lines, often 50 moves or maybe more, producing a draw act like pre-arranged allures human games.
The technical advances show that opening analysis can be quite different from what it really used to become a few years back, as well as a few decades ago. However, despite having todays amazing computer tools, the work on the modern opening book author is very demanding.
My technique of creating a strong opening book contains several steps. Assuming you already have an excellent database, the primary step would be the selection of games. Making a fantastic hand-typed book isn't feasible. The selected games perform the duties of the raw material, and generate the original version in the book. This step may possibly require a couple of hours of labor. The next step would be to fine-tune the move priorities. This is often a very time-consuming task, and within the case from the Rybka Aquarium book, it took a number of weeks.
Testing the publication is an independent process. First you operate a test and you consider the results trying to find weak points within the book. After further analysis you'll find some improvements, which require updates for the book and another test cycle have to be run. This process will take some days.
Last, although not least may be the creative phase of creating an opening book. Here you have to find new ideas and have a deeper understanding with the lines within the book. One recurring question within this phase means that engines offer a low evaluation, or play badly positions that are very good according to my personal understanding in the position. This phase will not be only very time-consuming, what's more, it needs a great deal of creativity and manual interaction and guiding on the engine analysis.
Q : You made an exceptionally 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 to your Aquarium book. I think Im not faraway when I say, which the Aquarium book includes around 95% in the Rybka-Cluster book which I employed in official tournaments. However, the Aquarium book is a lot 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 a number of selected openings deeply or perhaps is it a large book containing most openings that arise used?
A : Generally, it 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 that it absolutely was the best way to handle the career.
A narrow book might score pretty well inside short term, and I could have chosen that path if your high score in engine matches was my only goal. However, I wanted the Rybka Aquarium book to handle the needs of a substantially wider audience which means that a lot greater variety of openings needs being covered. This is the reason why I added many openings which might be popular in human play. The variations are color coded with green color recommended moves, red not advised, blue appropriate for human tournaments yet not computer tournaments and black neutral moves. Aquarium allows users to juggle the move priorities based about the color codes, so it's very easy, for example, to use it as a tournament book in chess engine matches.
Although I have a large range of users in your mind for this opening book, Im not certain it will suit everyone. The first group I am targeting is certainly Rybka users and chess engine fans normally. They will find up-to-date info on their openings. The second group could well be everyone who desires something new, new opening ideas or new opening setups. Last however, not least, I tried to allow it to become a thoroughly researched and approximately date, general opening guide to the tournament player. Although I think it may be great for grandmasters, I think they havent caught on towards the opening developments within the chess engine world yet still prefer their current ways of opening preparation. On the other hand I could be extremely enthusiastic about getting feedback from grandmasters. Perhaps it will likely be useful for my next opening book.
From the white size, the primary repertoire with 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 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 may be the Gr nfeld Defence and lots of Slav Defence Chebanenko 4 8230;a6 and Semi-Slav analysis and also the Nimzo-Indian Defence - where I used my openings in 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 as of this moment. Do you use IDeA inside your opening analysis?
A : Yes, for opening analysis there's no better solution, given 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 choose to give the engines a longer time for your analysis of each and every position - this show that I use automatic IDeA tree expansion and as the analysis progresses I check analysis tree, compare the effects with my notes and determine which positions are essential and analyze them deeper. For analyzing the middlegame I still use my personal, much easier methods, to determine which move to try out, but my IDeA analysis is consistently running.
Q : Do you use the revolutionary features of IDeA in Aquarium, for instance remote engines?
A : I really like the option to work with remote chess engines. It is small revolution for IDeA and yes it really works! For critical positions I run the analysis from my PC linked to approximately 40 remote engines, 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 utilizing the opening book tools of Aquarium itself?
A : I use Aquarium both as it allows quickly addition and editing moves inside the book and even though I am doing that I can have chess engines analyzing one if not more positions inside the background. Aquarium has numerous advantages and useful features with the serious player, like for analyzing individual positions or whole games; it is also good for basic help databases and needless to say the option to make use of remote engines for analysis. On the other hand, features for instance playing resistant to the engine are not good to me, regardless in the GUI.
Q : Which opening line do you spend essentially the most time on?
A : Its very hard to reply to. Probably the Sicilian Najdorf was by far the most time consuming, but nevertheless i am not 100% sure about truth on this opening.
I probably got the most significant kick beyond analyzing the Jaenisch Gambit in Ruy Lopez, because generally the best moves according on the chess engine are not really the most effective.
But this is just not all. I added about 700 variations towards the book in several openings, many of which might be seldom affecting tournament books. The main purpose would have been to make the Rybka Aquarium book more great for players. In other words, you will 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 on the book?
A : Sure. There are so many novelties from which to choose, but Ill begin by showing my oldest novelty, which dates entirely 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 is quite popular whatsoever levels of play. However, recent studies have shown that black is facing lots of problems. Here are two examples.
I am an exceptionally big fan and supporter on the Benoni, but this time the only top player who likes it can be GM Gashimov. There is really a recent theoretical book about interesting ideas inside the Benoni and I checked a couple of them. However, lets first look at an exceptionally aggressive line:
And now the rook lift 3! looks very unpleasant for black.
I needed to pass on the Sicilian Najdorf, but it had been not possible, obviously. It was really an enormous torture to me. At the end I found an entirely new strategy for playing one with the main lines, that's now under big pressure.
I am a major fan on the French Defence. However, in recent times blacks life will not be so simple. Here is another supply of worry for black. - a bit bishop move and black has problems to eliminate.
C63: Ruy Lopez. Jaenisch Gambit
The Rybka Aquarium book has a full coverage from the Jaenisch Gambit - things are all engine-checked and I made a great deal of new analysis to aid this interesting opening. Here are some normal understand that this will be the Jaenisch! positions covered with the book:
C92: Ruy Lopez. Zaitsev Variation
From day to day 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 the normal continuation 1 f5! When I first saw this approach to playing, I felt that there had for being a simple countermeasure. I feel that I succeeded in finding a fairly easy solution, although finding it took longer and effort than I had expected.
2! c4 3! with quite strong attack, however, 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, since the mainline is holding for black. This just isn't true after:
Here white provides the subtle move 1! therefore you can confirm the Rybka Aquarium book to find out that life is quite hard for black after 5.
D44: Semi-Slav, Botvinnik Variation
The Botvinnik system may be a popular opening with the last three decades. The theoretical debate can be quite, very deep also it looks like it's going to soon end in the simple endgame. The Rybka Aquarium Book includes the newest development in 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 is likely to show something around 0.00, but do you want to try out this position as black on the board?
The system with Rb1 and Be2 inside the Gr nfeld remains very dangerous for black. Many theoreticians have liked the device 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 may be the main weapon. One on the key positions arises following your moves
However, white presently has a devastating continuation.
The Catalan is quite popular nowadays and following the world championship match between Anand and Topalov, it'll get more supporters! The Rybka Aquarium book contains many ideas and novelties on this opening, one being
E12: Queens Indian Defence, Petrosian Variation
The old Petrosian recipe for handling the Queens Indian Defence isn't popular nowadays, but from hour and hour black tries way too hard . to win from this solid system and risks an excessive amount of. This is line is definitely 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 the novel. If you bought the download version, you must start with downloading the setup program about 1.2GB in space. As always when installing updates or the latest features, you ought to exit Aquarium before commencing the installation. When the download is complete, double-go through the downloaded file to start cellular phone.
While the setup program is running, it demonstrates to you where it really is installing the opening book. The installation path is highlighted inside the image above. Since I make use of a separate folder to the Aquarium program files plus the data files AquariumData, the opening book is positioned in C:AquariumDataATrees Rybka4Book.
Once not hard to install is finished, start Aquarium and switch for the Sandbox. Select the Tree tab within the ribbon and click on the leftmost button to come up with a number of available tree configurations.
The opening book contains thirteen columns of information. Some of them are simply of interest to people who will utilize it for 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 greater detail.
There is a new feature for displaying trees in Aquarium 4 that is used from the Rybka 4 Aquarium Opening Book. Several columns within the tree window is now able to grouped within a single heading. The next screenshot shows a sample where the three columns based within the Hugebase database are displayed beneath a single heading.
This feature was added for that practical believe that it allows more columns for being displayed inside the same space.
The leftmost column within the opening book would be the Move column. It shows the moves from the book along with the move colors. When I wrote regarding the use of move colors in Introduction to Tree Configurations, I said
A text description emerged for each color in Aquarium, and you should not take those descriptions too literally and utilize the colors by any means suits you best. Dagh Nielsen, one example is, preferred to call green moves Approved as opposed to Good and red moves Inferior rather than Bad. For other colors he used the description the thing is that in Aquarium.
The Rybka 4 Aquarium Opening Book is supposed both for chess engine play and human players, which is reflected in how Jiri Dufek used the colours to classify the moves:
Green is employed 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 is often a move that isn't recommended or out with the scope with this opening book. The reason is just not necessarily that it is usually a bad move, it really is just how the book isn't an opening encyclopedia, although it is fairly wide so they cover many openings. Jiri explained within the interview with ChessOK Cafe a few weeks ago: I wanted to make available two approaches playing every opening, but sometimes I were left with only one, because I felt that it had been the best way to handle the location. In the example shown above, the move 5 Scandinavian Defense is colored red, which is usually a good instance of a red move that will not be necessarily bad.
Blue moves are appropriate for human tournaments besides green moves, yet not computer tournaments. The moves 6 French Defense and 6 Pirc Defense are blue inside example.
Black can be used for neutral moves. They are not played in engine matches unless you can find no green moves inside position.
The flags column flg isn't used inside opening book.
The next group of columns inside the tree window will be the Rybka4 columns.
First, note the tiny, downward pointing triangle inside upper left corner. It shows the data inside tree window is ordered because of the leftmost column on this group. Clicking the title reverses an order. Clicking the title of some other column orders the info by that column.
This band of columns is based within the game database that Jiri used as raw material to get the initial version with 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 around the book. The first column shows the variety of games the spot that the corresponding move was played, we see how successful that move was as well as the third column shows the typical rating of players that played this move. Since the database contained video games, the ratings displayed with this column in many cases are quite high.
The next column may be the CAP column. This will depend on chess engine analysis in the position following your move inside the move column. The evaluations are mostly dependant on Rybka 3. This column, like many others inside the opening book, might be helpful when seeking interesting tricks to explore inside opening. Sometimes looking on the evaluation alone may raise some questions, but often it would be the comparison of columns, depending on different sources of knowledge that can give new ideas.
Next we encounter the Hugebase list of columns.
This group will be based upon over four million games almost exclusively played by human players - the Hugebase database. The first column could be the number of games in which the corresponding move is played. The second column may be the success rate for your move as well as 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 towards the 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 a couple of centuries, it doesnt tell which openings are popular and successful now. Thats the purpose with the 2009/10 group.
The Corr/ICCF is yet another gang of statistics columns, this time depending on high-level chess correspondence games. This is a more step within the direction of adapting Aquarium towards the needs of correspondence players see Correspondence Chess with Aquarium, but the information is also of interest with players. The quality of games played in recent times by strong correspondence players is extremely high. Many organizations, including ICCF, allow the using chess engines so you may be sure the statistics are determined by games of high quality. This makes the comparison while using Rybka4, Hugebase and 2009/10 groups interesting. Now, should you actually play in ICCF or some other chess correspondence events, this data is going to 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 from the engines.
Instead of counting on a single supply of data, the Rybka 4 Aquarium Opening Book allows you to definitely compare and draw your personal conclusions based about the comparison of five different sources of knowledge. Sometimes you will notice positions where there is really a fairly good agreement between statistics and you'll probably not go to whichever reason to doubt likely correct. In other positions you will observe different best moves depending about the column you happen to be viewing. The following position can be an example its keep is considerable difference between the stats.
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 the appropriate columns from your Rybka 4 Aquarium book just for this position.
The most popular move definitely is 8.f3, but 8.f4 is additionally often played and these would be the two green moves from the Rybka 4 book. If you happen to be studying this opening, you might wish to choose one of the moves for inclusion within your repertoire, but what type?
You can begin with comparing how successful the two of these moves have been used. If you glance at the Rybka4 column group, you will observe that 8.f4 is much more successful than 8.f3 66% vs. 58% along with the statistics are equally perfect for 8.f4 in human games Hugebase: 60% vs. 52%. However, if you think about the results in high-level correspondence games, the truth is a completely different picture and 8.f4 scores below 8.f3 Corr/ICCF: 52% vs. 59%. In this example the volume of 8.f4 games can be so low twenty-nine that you just might not wish to trust the stats for that move. Finally, the Rybka evaluation inside the CAP column gives both moves exactly the same evaluation, plus recent human games 2009/10 both moves have scored as well, but here you will discover only a number of games with 8.f4.
After examining this data, it is possible to decide if you need to choose essentially the most popular move or spend time on examining 8.f4 to learn why it scores so well both in the blend of human/video games and in the board games. If you are in search of interesting tips to explore within the opening, you'll probably wish to have a closer check out 8.f4.
If you might be really in search of novelties, you need to not hesitate to understand more about even the red moves within the opening book, once the statistics or CAP evaluation indicate they might be interesting. Here is but one example inside 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 inside the Rybka 4 Aquarium Opening Book, making us this information:
The most commonly encountered move within this position is 1. Other moves within the book are colored red. One of them, 4, only has been played triple, but it continues to be quite successful and scored eighty-three percent. Normally you'd probably ignore statistics according to so few games, but take a look at can observe how helpful any additional data inside the opening book might be. Looking on the CAP evaluations, we see which the evaluation of a single is only 0.07, but 4 has an extremely higher evaluation: 0.68. With this more details, 4 begins to look like an exceptionally interesting move! If you observe similar statistics within the opening book for a posture in your favorite opening, you need to definitely have a closer look. Perhaps you will surprise your attacker the next time you have fun playing the opening!
The general rule in Aquarium is that after you need a selected feature, it's available in places you are going to work with it. A good demonstration of this could be the selection of a gap book to have an engine competition.
When you build a new engine match, you may select the opening books for that engines within the Match properties dialog box. In the screenshot shown above, I am making a match between Rybka 3 and Rybka 4 and both engines will utilize Rybka 4 book to pick out their opening moves.
Similarly, when setting up a new engine tournament, the novel options are right there inside the Tournament properties dialog box.
In it, each of the engines from the tournament will utilize the Rybka 4 Opening Book and Maximum book moves is placed to eight. This means that following first eight moves they're going to stop using it and start to calculate their moves.
When playing up against the computer therefore you want the chess engine make use of the Rybka 4 book, you will discover two strategies to do that. In both cases you begin by switching to Play view.
If you desire to access all of the play options before starting an activity, you are able to do so by selecting Options from your drop-down menu for the New Game button that displays the Play options dialog box.
Here, I have selected the Rybka 4 Opening Book and place Max book moves to zero, so that Aquarium will select moves in the book as long as you will find moves available. After the engine starts.
Another simple way of choosing a dent book, when playing resistant to the computer, would be to click the little downward pointing triangle inside the title bar in the tree window as shown below.
A report on all available tree configurations will probably be displayed, allowing someone to pick the opening book you would like the computer to utilize. Note that when you are playing in fun mode, it is possible to switch opening books even following the game initiated a policy of.
There are two approaches to select and look at the Rybka 4 Opening Book inside the tree window while you happen to be examining a game from the Sandbox maybe in Database view.
The first method to choose the Tree tab from the ribbon and then click the leftmost button to produce a listing of available tree configurations. This method was demonstrated above, as soon as the Rybka 4 Aquarium book have been installed.
The other method is usually to click small triangle within the title bar in the tree window. It will be 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 as part of his opening book for Rybka was especially fascinating to me. It is very broad which it covers quite a few from the openings that I am playing, despite the fact that I mostly play side lines. In particular, I was amazed to discover the first diagram, from your anti-Gruenfeld line from the English Opening A16, along with the novelty that Jiri suggested: 1!.
The funny thing is always that I had this location over-the-board in a of my tournament games sixteen in years past 8230; and I made simply that move! It was inside the championship of Peterhof, which is often a suburb of St. Petersburg, Russia. I was able to win the action very quickly and was quite proud with my non-standard approach. However, the game had not been rated rather than made it into any databases. About a year ago, I found it inside my notes and decided to evaluate it. Actually, I was quite disappointed to learn that White only has a small advantage, as during the overall game I believed that 1 creates a nearly winning position!
Thank you to your response as well as the interesting game. Generally, I feel that finding new moves gets harder each year. It seems that everything continues to be played before. Of course this is just not completely true, but frequently a move that has been previously played within a game is analyzed as well as in some way reevaluated with a later date.
It is interesting you played 1 sixteen years back and it is often a good illustration of how everything seems to possess been played before - plus this case the evaluation remains the identical after all on this occasion.
I found this idea around six or eight in years past and later I shared it with Roman Chytilek. A few years later he explained that he had played this move against David Navara probably in 2007-2008 in certain local blitz tournament and lost following a hard struggle, but David probably knew this move. Since this line disappeared from chess practice, there is absolutely no reason to help keep this interesting move a secret much more.
I believe that there is merely one way for Black to reply: 1 Nd7 4 Kd8 13.d3!? Qg4
The final evaluation of position is somewhere within and/-, but for that ChessOK Cafe article I preferred the primary one, because/- is little bit optimistic. It is probably easier to give for engine games and/- coming from a human perspective. I believe you will find more interesting ideas from the Rybka 4 book.
The Rybka 4 book for Aquarium can be acquired through ChessOK Convekta, or another shop selling ChessOK products. You should buy it online with the ChessOK shop:
The Rybka 4 opening book can also be available 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 was prepared by Rybka team member Jiri Dufek.
Jiri has become 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, and also 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 to become a great success. He has recently been very successful in freestyle chess, in reference to his latest triumph like a victory within the Mundial Chess tournament captured. Jiri wrote it Bijte francouzskou! Beating the French along regarding his friend and long-time associate IM Roman Chytilek. Jiri not plays over-the-board chess, but focuses instead on opening analysis and chess analysis generally. Jiri can be an IT system administrator by profession. With this background, with his fantastic obvious desire for chess, Jiri is clearly an excellent team an associate any chess or computer-chess team.
Jiri was kind enough to respond to my questions the new Rybka 4 opening book, but I couldnt resist also asking him about his benefit Veselin Topalov inside world championship match against Viswanathan Anand and also the analysis tools he uses inside match.
Q : You are within the enviable position of like a member on the Rybka team along with Topalovs analysis team. Additionally, you are only new member on the Topalov team in their match against Anand. What could be the story behind you joining the Topalov team?
A : As a reward for my result inside Mundial Chess freestyle tournament, I was invited for the Linares tournament site to try out a game against Veselin Topalov. During my remain in Linares I met Veselins seconds - Jan Smeets and Erwin lAmi. After my game against Topalov, which ended in a very draw, I also got an opportunity 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 along with the world of chess engines. Shortly after I returned home on the trip, I got a party invitation from Silvio Danailov to participate in Topalovs team for his match against Vishy Anand.
Q : Im sure your expert opening knowledge played an enormous role in Topalovs decision to inquire about you to sign up his team. However, the occasions are changing and knowledge of computers and advanced analysis methods plays a more substantial role now when compared to any previous world championship match. Do you think your extensive experience and knowledge of these areas also played a part in Topalovs decision?
A : I think this question might be more complicated laptop or computer looks at first sight. Firstly, Topalov and grandmasters normally have their own ideas on how you can play the openings. Their priorities are totally different from those normally applied in readiness opening books for chess engine matches. There is no interest in any way in long lines which might lead to a draw after lots of precise moves. Memorizing lines is actually difficult 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 fantastic assistant for human opening preparation. He has to be flexible and adapt for the different requirements.
Secondly, I often checked existing analysis, seeking improvements or used my solutions to analyze lines, which are considered important to the match. Every time my conclusions agreed with all the analysis on the other staff. The quality of opening analysis with this level is exceedingly high, fat every team member makes an important contribution to your preparations. I have the very best respect with the other associates. They have proven continuously that they are unparalleled in opening preparations plus more than whenever they have stunned the chess world making use of their opening novelties.
Thirdly, my computer background has allowed me to offer IT support for team. You could declare that I have been the teams IT Department.
Q : Your Rybka 4 Aquarium opening book is going to be released soon. Its clear which you put a lot of work into it.
A : Yes, I put plenty of work involved with it. It helps that I realize its really interesting to assess unknown positions and ideas from chess books, chess practice or online games and find my very own solutions. Todays opening preparation can be quite deep. In some cases players know their lines in the opening all of the way on the endgame. A less prepared opponent will likely lose his way somewhere inside middlegame against such preparation. Things are looking worse in video games - long lines, often 50 moves or even more, producing a draw can be like pre-arranged appeals to human games.
The technical advances signify opening analysis can be quite different from just what it used to become a few in years past, in addition to a few decades ago. However, despite the presence of todays amazing computer tools, the work in the modern opening book author continues to be very demanding.
My means of creating a strong opening book is made of several steps. Assuming you already have a fantastic database, the very first step would be the selection of games. Making a fantastic hand-typed book is not possible. The selected games work as the raw material, and generate your initial version in the book. This step may require a number of hours of training. The next step would be to fine-tune the move priorities. This is often a very cumbersome task, and inside the case with the Rybka Aquarium book, it took a number of weeks.
Testing the novel is an independent process. First you manage a test then you glance at the results and then try to find weak points from the book. After further analysis you might find some improvements, which require updates for the book and another test cycle have to be run. This process will take a couple of days.
Last, yet not least would be the creative phase of getting an opening book. Here you should find new ideas and obtain a deeper understanding on the lines within the book. One recurring question on this phase is the reason engines give you a low evaluation, or play badly positions that are very good according to my understanding on the position. This phase is just not only very time intensive, what's more, it needs a great deal of creativity and manual interaction and guiding in the engine analysis.
Q : You made an incredibly successful opening book for Rybka-Cluster. Did some secrets from that book make it into your Rybka Aquarium opening book?
A : Yes, I moved priorities in the tournament book which I combined with Rybka-Cluster on the Aquarium book. I think Im not remote when I say, the Aquarium book includes around 95% in the Rybka - Cluster book which I found in official tournaments. However, the Aquarium book is a lot 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 couple of selected openings deeply or perhaps it a large book containing most openings that arise in reality?
A : Generally, the publication is relatively wide covering many openings and variations. I wanted to make available two approaches playing every opening, but sometimes I were left with only one, because I felt that it absolutely was the best way to handle the career.
A narrow book might score pretty well within the short term, and I would've 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 substantially wider audience which means that an extremely greater amount of openings needs to get covered. This means that I added many openings that happen to be 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 for the color codes, so it is easy, as an example, to use the publication as a tournament book in chess engine matches.
Although I have a broad range of users under consideration for this opening book, Im not certain that it will suit everyone. The first group I am targeting is needless to say Rybka users and chess engine fans normally. They will find up-to-date details about their openings. The second group could well be everyone who desires something new, new opening ideas or new opening setups. Last although not least, I tried to allow it to become a thoroughly researched and as much as date, general opening guide with the tournament player. Although I think it might be ideal for grandmasters, I think they havent caught on on the opening developments inside the chess engine world but still prefer their current types of opening preparation. On the other hand I will 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 leading repertoire with the Rybka Aquarium book is based about 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 from the Gr nfeld Defence, Nimzo-Indian Defence with 4.f4, etc.
For black there could 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 will be the Gr nfeld Defence and lots of Slav Defence Chebanenko 4 8230;a6 and Semi-Slav analysis and also the Nimzo-Indian Defence - where I used my openings on the Rybka - Cluster opening book.
Q : When Jeroen Noomens opening book for Aquarium was published he said that IDeA would be the best opening book tool as of this moment. Do you use IDeA within your opening analysis?
A : Yes, for opening analysis there isn't a better solution, since it allows that you find some very worthwhile, non-human continuations which can be hard to find otherwise. I emphasize quality over quantity, so I would prefer to give the engines a longer time to the 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 notes and choose which positions are necessary and analyze them more intense. For analyzing the middlegame I still use my own, personal, much easier methods, to make a decision which move to learn, but my IDeA analysis is actually running.
Q : Do you use the modern features of IDeA in Aquarium, including remote engines?
A : I really like the option make use of remote chess engines. It is small revolution for IDeA plus it really works! For critical positions I run the analysis from my PC attached to approximately 40 remote engines, positioned 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 the opening book tools of Aquarium itself?
A : I use Aquarium both because doing so allows quickly addition and editing moves within the book even though I am doing that I can have chess engines analyzing one or even more positions within the background. Aquarium has numerous 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 obviously the option to make use of remote engines for analysis. On the other hand, features for example playing up against the engine are needless to me, regardless with the GUI.
Q : Which opening line do you spend one of the most time on?
A : Its very hard to resolve. Probably the Sicilian Najdorf was essentially the most time consuming, however i am not 100% sure about truth on this opening.
I probably got the greatest kick outside of analyzing the Jaenisch Gambit in Ruy Lopez, because frequently the best moves according on the chess engine are not really the most beneficial.
But this will not be all. I added about 700 variations to your book in several openings, many of which might be seldom found in tournament books. The main purpose ended up being to make the Rybka Aquarium book more a good choice for players. In other words, you'll find continuation of sidelines, which improved existing theory or recent games - look and you may see!
Q : Can you show us a number of interesting novelties on the book?
A : Sure. There are so many novelties available, but Ill begin with showing my oldest novelty, which dates completely back to 2004.
This line is now away from fashion and I cant wait anymore to show my novelty.
A30. English Opening, Hedgehog System
The Hedgehog is incredibly popular in any respect levels of play. However, recent research indicates that black is facing a great deal of problems. Here are two examples.
I am an exceptionally big fan and supporter on the Benoni, but this time the only top player who likes it really is GM Gashimov. There is really a recent theoretical book about interesting ideas inside the Benoni and I checked a couple of them. However, lets first look at an extremely aggressive line:
And now the rook lift 3! looks very unpleasant for black.
I desired to pass in the Sicilian Najdorf, but it absolutely was not possible, obviously. It was really a major torture personally. At the end I found a fully new method of playing one from the main lines, and that is now under big pressure.
I am a large fan on the French Defence. However, lately blacks life is not so simple. Here is another method to obtain worry for black. - slightly bishop move and black has problems to eliminate.
C63: Ruy Lopez. Jaenisch Gambit
The Rybka Aquarium book incorporates a full coverage in the Jaenisch Gambit - things are all engine-checked and I made plenty of new analysis to compliment this interesting opening. Here are some normal do not forget that this will be the Jaenisch! positions covered from the book:
C92: Ruy Lopez. Zaitsev Variation
From hour and hour I tested my book on Playchess. I was surprised, when I found this line to become very popular.
This looks pretty dubious for black. However, black scored about 66% following normal continuation 1 f5! When I first saw this way of playing, I felt that there had for being a simple countermeasure. I feel that I succeeded in finding an easy solution, although finding it took more hours and effort than I had expected.
2! c4 3! with strong attack, nevertheless, you can look into the full analysis after 2 inside book.
The Queens Gambit Accepted is quite popular nowadays, and frequently white players choose strange sidelines, as the mainline is holding for black. This isn't true after:
Here white contains the subtle move 1! therefore you can look at the Rybka Aquarium book to view that life is quite hard for black after 5.
D44: Semi-Slav, Botvinnik Variation
The Botvinnik system is a popular opening for your last 3 decades. The theoretical debate is incredibly, very deep plus it looks like it is going to soon end in the simple endgame. The Rybka Aquarium Book includes the modern development with 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 most likely show something around 0.00, but do you actually want to learn this position as black in the board?
The system with Rb1 and Be2 inside the Gr nfeld remains to be very dangerous for black. Many theoreticians have liked the device with Be5-c7-a5. However, from the recent months black has faced many trouble here. I did my wise 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 can find Rybka 4 without graphical user interface GUI or together with the Aquarium, Chess Assistant or Fritz GUI. If you have questions in regards to the packages, chances are you'll ask with the Rybka forum.
The Deep version runs faster on machines using more than one core, on single core computers there's no difference in playing strength.
If you'll find ordering problems or questions, please contact Share-It.
Share-It adds a prolonged download option automatically, costing an additional 6 Euro. We recommend to clear out 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 definitely an official opening book for Rybka 4.
Aquarium is often a GUI specially intended for Rybka. You can find more specifics of it here or watch a youtube video about Aquarium from Jrobichess:
Rybka requires Windows XP or later.
You can find Rybka 4 without graphical user interface GUI or together with the Aquarium, Chess Assistant or Fritz GUI. If you have questions regarding the packages, you might ask with the Rybka forum.
The Deep version runs faster on machines exceeding one core, on single core computers there isn't a difference in playing strength.
If you'll find ordering problems or questions, please contact Share-It.
Share-It adds a lengthy download option automagically, costing an added 6 Euro. We recommend to take out it by unclicking it in the order form and to generate a backup on CD and other media instead.
The Rybka 4 opening book for Aquarium by Jiri Dufek is surely an official opening book for Rybka 4.
Aquarium can be a GUI specially made for Rybka. You can find more specifics of it here or watch videos about Aquarium from Jrobichess: