Answers.Body: <p>The big difference in my opinion between the Italian and the Ruy Lopez is that you're tempting black into weakening their queenside pawn structure with a6-b5. Attacking that extra hook with a4 is a huge source of play on the queenside for white that you do not get in the Italian after both sides for instance have played a4 and a5.</p>
  <p>Yes you are correct though that another huge difference is the ability to play d4 in one move. However, since the Marshall and Berlin have entered the field, top players at least are content with just sticking with playing d3. So there's no huge difference between the Italian and Ruy Lopez there.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-02-23T00:41:01.877Z
Answers.LastActivityDate: 2022-02-23T00:41:01.877Z
Answers.UserDisplayName: NoseKnowsAll
Body: <p>I haven't played the Ruy Lopez at all but I am curious about how it compares to the Italian. I've heard that one reason the Ruy is supposedly better is because White has an easier time playing d4 in one go, eg. in the Two Knights Defense White plays 4.d3 to protect the e-pawn whereas in the Morphy Defense White can simply castle and ignore the threat to his e-pawn. However, what if Black scares you away from playing d2-d4, eg. by threatening to enter the Berlin Defense / Marshall Attack? If White has to play d3 in those lines, doesn't he just end up in a position that's more or less equal to the Italian?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-02-23T14:05:43.457Z
Comments.Text: As mentioned in the answer below, there are some differences. However, as the Berlin became more popular there were indeed some grandmasters who tried to play the Guicco Piano to get a better version in some variations. So it's not so clear whether the d3 Spanish or the Italian is better, both have their advantages.
Comments.UserDisplayName: koedem
Tags: <theory><ruy-lopez>
Title: d3 lines of Ruy Lopez vs. Italian
ThreadText: # d3 lines of Ruy Lopez vs. Italian
  
  (Asked by: username_0 on 2022-02-22)
  
  I haven't played the Ruy Lopez at all but I am curious about how it compares to the Italian. I've heard that one reason the Ruy is supposedly better is because White has an easier time playing d4 in one go, eg. in the Two Knights Defense White plays 4.d3 to protect the e-pawn whereas in the Morphy Defense White can simply castle and ignore the threat to his e-pawn. However, what if Black scares you away from playing d2-d4, eg. by threatening to enter the Berlin Defense / Marshall Attack? If White has to play d3 in those lines, doesn't he just end up in a position that's more or less equal to the Italian?
  
  **Tags:** theory, ruy-lopez
  
  > **Comments:**
  > **username_1**: As mentioned in the answer below, there are some differences. However, as the Berlin became more popular there were indeed some grandmasters who tried to play the Guicco Piano to get a better version in some variations. So it's not so clear whether the d3 Spanish or the Italian is better, both have their advantages.  
  
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  ## 1 answers
  
  ### Answer by username_2 on 2022-02-23. Score: 5 | Accepted answer
  
  The big difference in my opinion between the Italian and the Ruy Lopez is that you're tempting black into weakening their queenside pawn structure with a6-b5. Attacking that extra hook with a4 is a huge source of play on the queenside for white that you do not get in the Italian after both sides for instance have played a4 and a5.
  
  Yes you are correct though that another huge difference is the ability to play d4 in one move. However, since the Marshall and Berlin have entered the field, top players at least are content with just sticking with playing d3. So there's no huge difference between the Italian and Ruy Lopez there.
  
  
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