Queen's Pawn Game: Colle System is a chess opening with the ECO code D05, part of the Queen's Pawn Game family. It goes 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. b3 c5 5. Bb2 Nc6. White opens with 1. d4 (the queen's pawn) and Black answers 1... d5. After 10 moves it is White to move. The lesson on the board explains every move of the line and lets you play it yourself; it is free.
The moves
1. d4 – White plays the pawn to d4
1... d5 – Black plays the pawn to d5
2. Nf3 – White plays the knight to f3
2... Nf6 – Black plays the knight to f6
3. e3 – White plays the pawn to e3
3... e6 – Black plays the pawn to e6
4. b3 – White plays the pawn to b3
4... c5 – Black plays the pawn to c5
5. Bb2 – White plays the bishop to b2
5... Nc6 – Black plays the knight to c6
About the Queen's Pawn Game
White opens with 1.d4 and plays a system without an early c4. It covers many calm setups like the Colle, London and Zukertort ideas.
White develops simply: Nf3, e3 or Bf4, Bd3, O-O.
A typical plan is the e4 push, often prepared with Nbd2 and c3.
Black has easy equality with ...d5, ...Nf6 and ...c5, so play actively.
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