D05

Queen's Pawn Game: Colle System, Traditional Colle

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Overview

Queen's Pawn Game: Colle System, Traditional Colle sits at the top of the Closed & Semi-Closed Games tree, indexed as ECO D05.

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

The line arises from 9 plies — specifically the moves 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c3.

Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.

ECO code
D05
Group
Closed & Semi-Closed Games (D)
Plies
9

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