OM Chess Academy

The Unstoppable Chess Academy is for anyone who is interested in mastering the art of chess with wide range of resources and tools that can help you improve your game and develop your skills.

Contact us

Got Questions?

Check our Frequently Asked Questions (FAQ) and see if you don't find answers to your questions. We collected the questions from chess players asked over a period of 18 years. If not contact us.

Visit FAQ

C60 Spanish - Dreev – The Cozio Defence (Chess Stars 2014). In this book, we have analyzed one of the oldest variations of the Ruy Lopez -1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7. The move 3...Nge7 was particularly popular during the second half of the 19th century. It was played at these times by such outstanding masters like Adolph Andersen and Willhelm Steinitz.

content c60 SpannishAt the beginning and during the middle of the 20th century, the theory of the Ruy Lopez began to develop very intensely and the popularity of this old variation diminished rapidly. It remained in the shadow of the more complicated Chigorin schemes - 1 .e4 e5 2.Nf3 Nc6 3.Bb5 a6 4. Ba4 Nf6 5.0-0 Be7 6.Nb3 b5 7.Bb3 d6 8.c3 0-0 9.h3, the Marshall counter attack -1 .e4 e5 2.Nf3 Nc6 3.Bb5 a6 4. Ba4 Nf6 5.0-0 Be7 6.Nb3 b5 7.Bb3 0-0 8.c3 d5 and the Open variation -1 .e4 e5 2.Nf3 Nc6 3.Bb5 a6 4. Ba4 Nf6 5.0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5. In all these positions, Black's pos­sibilities to seize the initiative proved to be greater...

The 80s and 90s

During the 80ies and the 90ies of the past century, the popularity of the line 3...Nge7 began to increase. Grandmaster Ivan Sokolov made a great contribution to the development of this system for Black and he tested it very often in his games. My long time friend and coach, the international master from the city of Izhevsk Alexander Filipenko was working as a coach in the Russian School of grandmaster Alexander Panchenko and he gave a course of lectures about this variation. Based on his knowledge and experience, during the 80ies and the 90ies of the last century, this system was played quite successfully in the tourna­ment practice by such famous students of this School like grandmas­ters Alisa Galliamova, Maxim Sorokin and Ruslan Shcherbakov. Mean­while, the theory of the variation 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 was developing intensely. Black refrained from including the move a7-a6 at this early stage of the game, so that later, he did not wish to transpose to positions from the Steinitz Defence Deferred 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.0-0 a6 5.Ba4 d6 6.c3 Bd7 7.d4, or 6...g6 7.d4 Bd7, in which Black ended up in very solid but rather passive positions. He was trying to enter situations which were not so typical for the long maneuvering structures of the Ruy Lopez, but were more similar to the majority of the Open Games in which the value of every move increased consider­ably. Under these conditions, each mistake by White in the opening stage of the game may lead to Black seizing the initiative.cozio defence

21st century use

At the beginning of the 21st century, the development of the vari­ation 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 was given a new impulse and its popularity increased considerably. This was connected with the new and interesting idea that Black could give up the center with 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.0-0 g6 Nc3 a6 6.Ba4 Bg7 7.d4 exd4 8.cxd4, or 6.Bc4 Bg7 7.d4 exd4 8.cxd4, reaching very complicated positions with mutual chances. Nowadays, this variation is played by famous grandmasters like Levon Aronian, Sergey Karjakin, Vadim Zvjaginsev, Ivan Sokolov and many others...

Finally, I would like to mention that the entire variation 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 has not been so well analyzed yet.

Dear Opening Master readers, I would like to believe that after you have read this book, you will make your own contribution with your games and analy­ses to the development of this system...

Download our free C60 Opening as CTG tree as well as PGN database.

{phocadownload view=file|id=1|text=OM C60 CTG|target=s} {phocadownload view=file|id=2|text=OM C60 PGN|target=s}

Chapter 1 – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7

Chapter1 Spannish

Chapter 2 and 3 – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4. c3

Chapter2 3 Spannish

Chapter 4 – 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.d4

Chapter4 Spannish

Chapter 5 – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4. Nc3

Chapter5 Spannish

Chapter 6 and 7 – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.0-0

Chapter6 7 Spannish


Author: Jan Helbich, SIM

Source: C60 Spanish, Author: Alexey Dreev


openingmaster media

24/7 Support

If you are not sure which database is right for you or which chess programs you need, contact us and we will be happy to assist you.

Contact us

Who's Online

We have 119 guests and no members online

Cloud Services

All our chess databases are stored on external cloud service at This way you have access to the new release immediatelly after we publish it. 

Learn More

Contact Info

Opening Master chess databases are copyrighted material. Please refer to our terms and conditions for using the collection. Do not distribute, make illegal copies or parts of the databases. We are not expensive.

Opening Master chess databases are only available as part of the Subscription plans.



+421 (917) 252-978 (Europe)

+1 (424) 610-7507 (USA)

+91 (870) 805-8364 (India)

HQ Address

Mariánska 32/A
Stupava, 900 31, Slovakia


administrator(at) or academy(at)


Cron Job Starts