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Goi 5 chess opening book




Goi opening book version 5.1:


December, 2 2018:

Goi 5.1 CTG update 1.

This update wasn't properly a walk, as any CTG book is, especially because I had to face off the new Vitamin 14 versions. For the first time I've used the 'Add Priority Analysis' and the "Learn from Database' techniques on the Fritz interface. The result is a book tailored to neutralize Vitamin 14* AND for high-quality Playchess games. *version n6s3j9_RC2_10nov2018 and the previous one

I've sent the book to Sedat Canbaz, we'll see the next days if I'm right about my latest product. I take this opportunity to tell that this was the last time I will work on competitive books in .ctg format, unless I will have at least 10 preorders of that specific kind of book. More: after these updates I will take a LOOONG pause and focus on myself and other projects, amongst them 'The Oak'; producing always books on top starts to be too much stressing for me.


WARNING: this is a competition book, not a study one (you'll have 'The Oak' for that purpose), so sometimes you could find syntactically wrong annotations like the following one:

forced value

This doesn't mean those moves are wrong, it's just the only sure way I know to force the Fritz interface to make that move (it's known that otherwise it would act arbitrarily), because only that move in that corresponding position can lead to a positive outcome, so don't be scared if you see this.


A little bit of stats:

opening statistics


In the further days, very calmly, I will publish also the BIN update, I still don't know precisely when.


Latest benchmarks (December, 5 2018)


- Goi 5.1 CTG update 1 contains 2.653.728 positions (size: 217 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. <--




How to use the book:

Unzip the archive and place the goi5.1.ctb, goi5.1.ctg and goi5.1.cto files into the same directory, then start your Chessbase program, such as Fritz and select the ctg file. Use what is listed below on the 'Advanced' settings of the engine:

- Tick the Tournament book box

- Set Minimum games to 0

- 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 minimum (0 by now)


See the picture below:


ctg best settings



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October, 28 2018:








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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
- goi 5.1 ctg (version 5.1)



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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:





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