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Goi 5 chess opening book




Goi opening book version 5.1:


November, 7 2018:

Reached a new elo peak this night on the Playchess room! 2555 Playchess engine Elo points, just not bad for a simple quad-core PC like mine... Gotta REALLY love this new book!


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November, 6 2018:


This was my last challenge about CTG books (unless I'll get at leat 10 preorders for the next version, as I've said), and as always it wasn't easy, mostly because my opponents kept to switch book versions.
But this time, managing now very well the Goi 5 technique, it was also amusing. With the latest CTG compilation I didn't lose a single game on Playchess, even with the strongest opponents! Except a single game today for... time (?)...
I guess those at Playchess should fix this time issue related to the delay of their server, the position was even in my favour... Anyway, there you go:

Goi 5.1 CTG:

It contains the most fresh lines from the most powerful computer games > 2480 in the Zagor Almanah Playchess tournament, the almost entire 2018 repertoires of two strong Playchess players (one of them at the top between the strongest), my latest games on Playchess, with the lost games corrected, the SCCT XX tournament games, the matches with the nowadays top books, some thousands games from my rent Xeon E7 (coffeeone) server et cetera...

The result is an average sized book (172 MB), having 2.389.034 positions. The lines are very, very strong. So strong that I had to botch some interesting opening made by Grand Masters like Aronian, in order to beat the other books... On the other hand this has opened my eyes: I have checked the Mega Database 2018 for that opening and with that black move I have botched the white statistically won.

Another interesting thing is that I have inserted some trick advised by the IM Sergio Durán Vega to enhance the performance.

The book was tested several days on Playchess, in which I kept my elo score above 2500. You can have fun by set up matches between books, but if you want the real thing you must test your book in the Playchess arena, where there is always some big fighter like Leonidas or SASSY MUFFIN ready to destroy your games. I've survived to them these days.

As last release, Goi 5.1 CTG must be something special: this book will be subdivided in three updates, I will experiment alot in the further time. And a special book comes with a special price.

Depending on how the sales will go I will decide the future of this very website, I have alot of things in mind, but I have also personal issues to face off.


Latest benchmarks (November, 6 2018)


- Goi 5.1 CTG contains 2.389.034 positions (size: 172 MB)


goi 5.1 CTG format: price 25$.



The CTG distribution works with any engine possible with the Chessbase softwares (hence the official Stockfish too) and with the Aquarium interface. It can also be used with the Droidfish Android app as opening book. In Arena can only be used as engine book.



You can buy the Goi opening book even if you don't have a Paypal account: you will be redirected to the Paypal webframe interface, just use your normal (or virtual, best advice for internet) credit card. If you are unsure read this article: How to buy on Paypal without creating an account.

--> Delivery time: 1 minute - 8 hours, depending whether I am at my computer or not, please don't push me emailing when you've made the purchase: your order will be processed. <--


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October, 28 2018:





My book has come back to the first place with a large score edge towards the other books. Pity the newest Medulla and Hiarcs 14zb didn't participate... At MZChess they celebrated when Pippo's Caudine Forks book took over mine for a while but, as we say here, "the one who really laugh is the one who laugh at the end". I wouldn't mind if Pippo's book won the tournament, he deserves because he's a great bookmaker. What is really important here is the distance between my book and Vitamin 13.

Now you have a third party's proof that my tests are legit!




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Special thanks to: Dr. Thomas Zipproth, coffeeone, Streethawk07, BlackQueen, klasman, IM Sergio Durán Vega. Thanks to all the people buying my books and so contributing to this awesome project.


The chess programs used to make Goi 5.1 are: asmFishCP (new entry!), asmFish, BrainFish, CFish, Raubfisch and Stockfish 9 on both very powerful high-end rented servers and my computer.

Usually the variants have 50-80 plies in depth (so 25-40 moves White + Black). With Goi 5.1 you can reach a very advanced state of the game with a great position, even if you don't have a machine with a powerful processor. It's lines go from the very beginning until sometimes the ending of the game.


- Goi 5.1 BIN contains 9.239.964 positions (size: 140 MB)


goi 5.1 BIN format: price 13$.



The BIN (Polyglot) distribution can be used with the Chessbase softwares with the following engines: Komodo, Houdini, Brainfish, CFish, asmFish, Raubfisch, Toltec, SugaR XPrO. It can be used also in Arena with (I guess) the same engines. It works also on Android with Droidfish. You will find below the instructions on how to use a Polyglot book (BIN) with the mentioned engines.



You can buy the Goi opening book even if you don't have a Paypal account: you will be redirected to the Paypal webframe interface, just use your normal (or virtual, best advice for internet) credit card. If you are unsure read this article: How to buy on Paypal without creating an account.

--> Delivery time: 1 minute - 8 hours, depending whether I am at my computer or not, please don't push me emailing when you've made the purchase: your order will be processed. <--




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Subscriptions have been suspended for the moment.


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Goi opening books collection package: size 2.3 GB, price 80$.


This is the collectors' choice.

What you'll get with this package:

- goi.bin (version 1)

- goi_competitions_edition.bin
- goi_light_edition.bin (version 2)

- goi.bin (version 2.1)

- goi2.2.bin (version 2.2)

- goi2.3.bin (version 2.3)

- goi3.bin (version 3)

- goi 3.1 abk
- goi 3.1 ctg
- goi 3.1 bin (version 3.1)

- goi 3.2 bin
- goi 3.2 ctg (version 3.2)

- goi 4 ctg
- goi 4 bin (version 4)

- goi 4.1 bin
- goi 4.1 ctg (version 4.1)

- goi 4.2 bin
- goi 4.2 ctg (version 4.2)

- goi 4.3 bin, goi 4.3.1 bin
- goi 4.3.1 ctg (version 4.3.1)

- goi 4.4 bin
- goi 4.4 ctg (version 4.4)

- goi 5 bin
- goi 5 abk
- goi 5 ctg (version 5)

- goi 5.1 bin



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How to install the BIN format on Chessbase softwares:



Tick 'OwnBook' and enter the full path of the file followed by its name plus its extension.
As example: the bin file is in the folder C:\Books → you will have to enter the string C:\Books\goi5.bin

Set the maximum possible of 'BookDepth' (if I recall correctly asmFish has 100, while Raubfisch, Cfish and BrainFish 255).



How to install the BIN format on the Arena GUI interface:





How to install the CTG format on Chessbase softwares:


Place the goi5.ctb, goi5.ctg and goi5.cto files into the same directory, then start your Chessbase program, such as Fritz and use what listed below on the 'Advanced' settings of the engine:

- Tick the Tournament book box

- Set Minimum games to 1

- Set Variety of play to the minimum (10 by now)

- Set Influence of learn value to the maximum (100 by now)

- Set Learning strength to the maximum (500 by now)


See the picture below:


ctg best settings




Openings and variants included in the book, sorted by the ECO index:


Tartakowers Flank Opening, Basman, Saragossa, Anderssen, Mieses Opening, French Attack, Grob's Attack, King's Indian Attack, Sleipner, Sokolsky Opening, Larsen Opening, Bird Opening, Queen's Fianchetto, Double Bird, King's Fianchetto, Sicilian-Bird, From's Gambit, Indo Bird, Dutch Attack, Leningrad Attack, Stonewall Attack, Grunfeld Indian Attack, Reti Opening, Accepted Reti, Benoni with White, Queen's Indian Attack, Reti-Slav, Unusual 3nd White, Mikenas - System, English, English Four Knights, Symmetrical English, Hedgehog, St. George/Basman, Owens Defence, Nimzowitsch, Scandinavian Defence, Modern Defence, Alekhine's Defence, Alekhine's Defence Chase Variation, Alekhine's Defence Modern Variation, Robatsch Modern Defence, Pirc Defence, Pirc Defence Czech Variation, Pirc Defence Fianchetto Variation, Pirc Defence Classical Variation, Pirc Defence Austrian Attack, Caro-Kann, Caro-Kann Exchange Variation, Caro-Kann Panov Variation, Caro-Kann Main Line, Caro-Kann Larsen-Bronstein, Caro-Kann Nimzowitsch, Caro-Kann Classical Variation, French Defense, French Defense Exchange Variation, French Defense Advance Variation, French Defense Tarrasch Variation, French Defense Classical Variation, French Defense Burn Variation, French Defense Classical Main Line, King's Gambit, King's Knight Games, The Petroff Defence, The Scotch Game, Three Knights Game, Spanish Four Knight Game, Giuoco Pianissimo, Closed Defence, The Classical Polerio Variation, Spanish (Ruy Lopez), Spanish Schliemann Variation, Spanish Classical Variation, Spanish Exchange Variation, Open Spanish, Closed Spanish, Spanish Main Line, Spanish Modern Chigorin Defence, Sicilian, Sicilian Grand Prix Attack, Sicilian Morra Gambit, Sicilian Alapin Variation, The Closed Sicilian, Sicilian Vinken Variation, Sicilian Spassky, Sicilian Classical Variation, Sicilian Rossolimo, Sicilian Accellerated Dragon, Sicilian Maroczy Bind, Sicilian Pelican Sveshnikov, Kan Variation, Taimanov, Dutch Defence, Dutch Defence Staunton Gambit, Dutch Defence Rubinstein, Dutch Defence Leningrad Variation, Moscow Variation, Sozin, Boleslavsky, Richter/Rauzer, The Dragon, Yugoslav Attack, Scheveningen, Keres Attack, Najdorf, Englung Gambit, Polish Defence, Nimzowitsch, French Indian, Tartakower System, Benoni, Blacmar-Diemer Gambit, Trompowsky Attack, Queen's Knight Opening, King's Knight's Openings, Queen's Bishop Openings, Torre System, Colle System, Queen's Gambit, The Slav, Queen's Gambit Accepted, Queen's Gambit Declined, Tarrasch Defence, Ragozin Variation, Semi-Tarrasch, Semi-Slav, Orthodox Variation, Indian Opening, Indian Opening Trompowsky Attack, Dory Opening, Old Indian Knight Game, Indian Knight Game, Queen's Indian Knight Game, King's Indian Knight Game, Torre Attack, London System, Fianchetto Variation, Budapest Gambit, Old Indian, Modern Benoni, Blumenfeld Gambit, Bogo-Indian, Nimzo-Indian, Neo-Saemisch, Kasparov Variation, Three Knights Variation, Spielmann, Saemisch Variation, Leningrad Variation, Alekhime/Euwe/Botvinnik, Zurich Variation, Noa Variation, Pirc Variation, Rubinstein Variation, Taimanov Variation, Huebner Variation, Grunfeld Defence, Russian System Accellerated, Smyslov's System, Full Center Satup, Accellerated Averbakh, The Kramer System, Makagonov System, Panno Variation