Chess Codex
Tree path 6 levels Queen's Gambit Declined: Three Knights Variation › Queen's Gambit Declined: Modern Variation, Normal Line › Queen's Gambit Declined: Orthodox Defense › Main Line › Queen's Gambit Declined: Orthodox Defense, Henneberger Variation › Queen's Gambit Declined: Orthodox Defense, Swiss, Carlsbad Variation
  1. Chess Codex
  2. Queen's Gambit Declined: Three Knights Variation D37
  3. Queen's Gambit Declined: Modern Variation, Normal Line D55
  4. Queen's Gambit Declined: Orthodox Defense D60
  5. Main Line D63
  6. Queen's Gambit Declined: Orthodox Defense, Henneberger Variation D63
  7. Queen's Gambit Declined: Orthodox Defense, Swiss, Carlsbad Variation D63 you are here
D63

Queen's Gambit Declined: Orthodox Defense, Swiss, Carlsbad Variation

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Overview

Queen's Gambit Declined: Orthodox Defense, Swiss, Carlsbad Variation belongs to the gambit family of chess openings (ECO D63, Closed & Semi-Closed Games). It trades material for attacking chances — a classic trade-off that has fascinated players from the Romantic era to modern correspondence chess.

The Closed & Semi-Closed Games group covers closed and semi-closed games — 1.d4 systems characterised by long strategic manoeuvring rather than early tactics.

It begins with 15 plies and takes 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. cxd5 to reach the canonical position.

The line refines Queen's Gambit Declined: Orthodox Defense, Henneberger Variation, which traces back to the root opening Queen's Gambit Declined: Three Knights Variation.

Explore the position on the interactive board, study its real-world results from Lichess, and challenge the engine when you are ready.

ECO code
D63
Group
Closed & Semi-Closed Games (D)
Plies
15
Parent
Queen's Gambit Declined: Orthodox Defense, Henneberger Variation

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