Queen's Indian Defense: Spassky System3 is a chess opening with the ECO code E14, part of the Queen's Indian Defense family. It goes 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. Nc3 cxd4 7. exd4 Be7 8. O-O d5 9. cxd5 Nxd5. White opens with 1. d4 (the queen's pawn) and Black answers 1... Nf6. After 18 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. c4 – White plays the pawn to c4
2... e6 – Black plays the pawn to e6
3. Nf3 – White plays the knight to f3
3... b6 – Black plays the pawn to b6
4. e3 – White plays the pawn to e3
4... Bb7 – Black plays the bishop to b7
5. Bd3 – White plays the bishop to d3
5... c5 – Black plays the pawn to c5
6. Nc3 – White plays the knight to c3
6... cxd4 – Black captures on d4 with the c-pawn
The line goes on for 6 more moves; the lesson shows them all.
About the Queen's Indian Defense
After 1.d4 Nf6 2.c4 e6 3.Nf3, Black plays 3...b6 and ...Bb7 to control e4 and the light squares. It is calm and solid.
The bishop on b7 fights for e4 along the long diagonal.
White often plays g3 and Bg2 to fight that diagonal.
Black frees the game with ...c5 or ...d5 at the right moment.
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