Chess Codex
Tree path 5 levels Queen's Pawn Game › Queen's Gambit › Queen's Gambit Declined › Queen's Knight Variation › Semi-Slav Defense: Accelerated Move Order
  1. Chess Codex
  2. Queen's Pawn Game D00
  3. Queen's Gambit D06
  4. Queen's Gambit Declined D30
  5. Queen's Knight Variation D31
  6. Semi-Slav Defense: Accelerated Move Order D31 you are here
D31

Semi-Slav Defense: Accelerated Move Order

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Overview

Semi-Slav Defense: Accelerated Move Order is a specific line in the Closed & Semi-Closed Games family (ECO D31), arising from a recognised theoretical position.

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 6 plies and takes 1. d4 d5 2. c4 e6 3. Nc3 c6 to reach the canonical position.

The line refines Queen's Gambit Declined: Queen's Knight Variation, which traces back to the root opening Queen's Pawn Game.

The line has 6 documented children — Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit, Semi-Slav Defense: Marshall Gambit, Semi-Slav Defense: Meran Variation, Pirc Variation, and others being widely played.

Together the deeper variations number 16 across the full subtree.

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ECO code
D31
Group
Closed & Semi-Closed Games (D)
Plies
6
Parent
Queen's Gambit Declined: Queen's Knight Variation
Direct variations
6
Total in subtree
16

This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.

Statistics from Lichess

8,560,997 games · White 51.0% / Draw 5.2% / Black 43.8%

MovesGamesW / D / B
Nf33,868,143
Bf41,036,164
e31,023,288
cxd51,022,661
e4917,083
a3187,184
c5146,494
f3110,407

Source: Lichess Opening Explorer · cached 2026-09-26 01:30:23

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Variations (6)

Related variations at the same level

Sister lines that share the same parent Queen's Gambit Declined: Queen's Knight Variation:

Show all 16 sub-variations (full subtree)

https://chesscodex.org/openings/semi-slav-defense-accelerated-move-order