I would like to know why some openings are called "defences" and other all called "openings." What is the difference?

  • Your question is about names of openings, I presume? – Dag Oskar Madsen Jan 18 '15 at 8:28
  • Not, is about the terms. Why sometime are called opening and others defences. Thank you. – user5691 Jan 19 '15 at 13:41
  • user5691, I think that's actually what @DagOskarMadsen was getting at. I've edited the question to reflect your intent. – ETD Jan 19 '15 at 18:48

"The opening", in general, is the first phase of a game of chess, in which both sides develop their pieces. It is followed by "the middlegame" and, if the game gets that far, "the endgame".

When people talk about "an opening", they are referring to a particular series of opening moves that has a name. For example, 1.d4 d5 2.c4 e6 is the Queen's Gambit Declined, and 1.d4 d5 2.c4 dxc4 is the Queen's Gambit Accepted.

Openings that are defined by the moves that Black makes are often called "defenses", since White is generally considered the attacker and Black the defender by default. For example, 1.e4 c5 is the Sicilian Defense and 1.e4 e6 is the French Defense.

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  • Thak you a lot! – user5691 Jan 19 '15 at 13:42

A "defense" is a subset of an "opening." It is a system for Black against standard opening moves such as d4 or e4.

Other "openings" are named from White's point of view, such as Ruy Lopez (e4) or the Colle System (d4).

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