user2429: Which opening move  out of 1. e4, 1. d4, 1. c4 and 1.Nf3 has given the best scoring percentage for White in World Championship matches? What are the percentages?

user2130: 1. b3 has the greatest scoring percentage (100%), although it's statistically insignificant because it only appears in one game out of 1,506.
The successful openings played more regularly are: 
Nf3 (61.7%, 102 games)
c4 (59.3%, 129 games)
e4 (57%, 631 games)
d4 (55.4%, 632 games)
That data's compiled after downloading all 1,506 World Championship games from 1886 to 2013 from the chessgames.com WCC archive. Here's what Scid's Tree Window shows:


2429: <p>Which opening move  out of <strong>1. e4</strong>, <strong>1. d4</strong>, <strong>1. c4</strong> and <strong>1.Nf3</strong> has given the best scoring percentage for White in World Championship matches? What are the percentages?</p>
 2130: <p><strong>1. b3 has the greatest scoring percentage</strong> (100%), although it's statistically insignificant because it only appears in one game out of 1,506.</p>

<p>The successful openings played more regularly are: </p>

<p><strong>Nf3 (61.7%, 102 games)<br>
c4 (59.3%, 129 games)<br>
e4 (57%, 631 games)<br>
d4 (55.4%, 632 games)</strong></p>

<p>That data's compiled after downloading all 1,506 World Championship games from 1886 to 2013 from the <a href="http://www.chessgames.com/wcc.html" rel="nofollow noreferrer">chessgames.com WCC archive</a>. Here's what Scid's Tree Window shows:</p>

<p><img src="https://i.stack.imgur.com/dKeZd.png" alt="Scid&#39;s Tree Window for all 1,506 World Championship Chess games"></p>
