Tree path 6 levels Queen's Pawn Game › Zukertort Variation › Queen's Pawn Game: Symmetrical Variation › Queen's Pawn Game: Colle System › Queen's Pawn Game: Colle System › Queen's Pawn Game: Colle System
D05

Queen's Pawn Game: Colle System

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Overview

Queen's Pawn Game: Colle System is a specific line in the Closed & Semi-Closed Games family (ECO D05), 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 7 plies and takes 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 to reach the canonical position.

The line refines Queen's Pawn Game: Colle System, which traces back to the root opening Queen's Pawn Game.

It continues primarily into one named line, Rubinstein Opening: Semi-Slav Defense.

Together the deeper variations number 3 across the full subtree.

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

ECO code
D05
Group
Closed & Semi-Closed Games (D)
Plies
7
Parent
Queen's Pawn Game: Colle System
Direct variations
1
Total in subtree
3

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Variations (1)

Show all 3 sub-variations (full subtree)