D05Closed
Colle System
Main Line
1. d4 d5 2. Nf3 Nf6 3. e3
Overview
White aims for the pawn formation d4-e3-c3 followed by Bd3, O-O, and an e4 break. Simple to learn with a clear attacking plan. Named after Belgian master Edgard Colle.
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Open chess.rodeo ↗Related Openings
D06Queen's Gambit
1. d4 d5 2. c4
D30Queen's Gambit Declined
1. d4 d5 2. c4 e6
D20Queen's Gambit Accepted
1. d4 d5 2. c4 dxc4
D10Slav Defense
1. d4 d5 2. c4 c6
D43Semi-Slav Defense
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6
D47Semi-Slav Defense: Meran Variation
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5