Answers.Body: <p>I bought the 11th edition in the early 1970's. They didn't have PCs then. They didn't have chess programs and computer databases of games then. Modern chess databases are much, much, much better than an old, out of date MCO. All MCOs are very out of date. Don't waste your money. Don't let your mother waste her money.</p>
  
  <p>If she is seriously going to a chess class where they give this kind of advice then ask for your money back and find a better chess class. Any one where they don't recommend buying an old opening book like MCO would be a better one.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-09-26T16:41:28.893Z
Answers.Text: so basically you mean to learn it online? Any link to free, well known online database of chess plays / strategies?
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Answers.CreationDate: 2017-09-23T20:19:36.393Z
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Answers.UserDisplayName: Brian Towers
Body: <p>My mom is going to chess classes for some years now. Am absolutely noob. She has been asked to buy a book: "Modern Chess Openings" by Walter Korn. While googling, I came to know that the author of this title is changed over edition.
  Till MCO12, it seems that it was completely written by Walter:</p>
  
  <p><a href="https://i.sstatic.net/cIw9Nm.jpg" rel="noreferrer"><img src="https://i.sstatic.net/cIw9Nm.jpg" alt="enter image description here"></a></p>
  
  <p>MCO13 says "Revised by Nick De Firman, under the editorship of Walter":
  <a href="https://i.sstatic.net/EsZbim.jpg" rel="noreferrer"><img src="https://i.sstatic.net/EsZbim.jpg" alt="enter image description here"></a></p>
  
  <p>Now MCO14, 15 completely erases Walter's name from the book:</p>
  
  <p><a href="https://i.sstatic.net/19moT.jpg" rel="noreferrer"><img src="https://i.sstatic.net/19moT.jpg" alt="enter image description here"></a> 
  <a href="https://i.sstatic.net/vx8xfm.jpg" rel="noreferrer"><img src="https://i.sstatic.net/vx8xfm.jpg" alt="enter image description here"></a></p>
  
  <p>Is the content of the book considerably changed over these editions. Which one should I prefer?</p>
  
Tags: <books>
Title: Which is MCO book by Walter
ThreadText: # Which is MCO book by Walter
  
  (Asked by: username_0 on 2017-03-01)
  
  My mom is going to chess classes for some years now. Am absolutely noob. She has been asked to buy a book: "Modern Chess Openings" by Walter Korn. While googling, I came to know that the author of this title is changed over edition.
  Till MCO12, it seems that it was completely written by Walter:
  
  [![enter image description here](https://i.sstatic.net/cIw9Nm.jpg)](https://i.sstatic.net/cIw9Nm.jpg)
  
  MCO13 says "Revised by Nick De Firman, under the editorship of Walter":
  [![enter image description here](https://i.sstatic.net/EsZbim.jpg)](https://i.sstatic.net/EsZbim.jpg)
  
  Now MCO14, 15 completely erases Walter's name from the book:
  
  [![enter image description here](https://i.sstatic.net/19moT.jpg)](https://i.sstatic.net/19moT.jpg)
  [![enter image description here](https://i.sstatic.net/vx8xfm.jpg)](https://i.sstatic.net/vx8xfm.jpg)
  
  Is the content of the book considerably changed over these editions. Which one should I prefer?
  
  **Tags:** books
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2017-09-23. Score: 1
  
  I bought the 11th edition in the early 1970's. They didn't have PCs then. They didn't have chess programs and computer databases of games then. Modern chess databases are much, much, much better than an old, out of date MCO. All MCOs are very out of date. Don't waste your money. Don't let your mother waste her money.
  
  If she is seriously going to a chess class where they give this kind of advice then ask for your money back and find a better chess class. Any one where they don't recommend buying an old opening book like MCO would be a better one.
  
  > **Comments:**
  > **username_0**: so basically you mean to learn it online? Any link to free, well known online database of chess plays / strategies?  
  
  ---
  
  