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 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. b3 Be7 7. Bb2 O-O 8. Nbd2 d5. White opens with 1. d4 (the queen's pawn) and Black answers 1... Nf6. After 16 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... Nf6 – Black plays the knight to f6
2. Nf3 – White plays the knight to f3
2... e6 – Black plays the pawn to e6
3. e3 – White plays the pawn to e3
3... b6 – Black plays the pawn to b6
4. Bd3 – White plays the bishop to d3
4... Bb7 – Black plays the bishop to b7
5. O-O – White castles kingside
5... c5 – Black plays the pawn to c5
6. b3 – White plays the pawn to b3
6... Be7 – Black plays the bishop to e7
The line goes on for 4 more moves; the lesson shows them all.
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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