Queen's Gambit Declined: Tarrasch Defense, Stoltz Variation is a chess opening with the ECO code D34, part of the Queen's Gambit Declined family. It goes 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. Nc3 O-O 9. Bg5 Be6 10. Rc1 b6. White opens with 1. d4 (the queen's pawn) and Black answers 1... d5. After 20 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. c4 – White plays the pawn to c4
2... e6 – Black plays the pawn to e6
3. Nf3 – White plays the knight to f3
3... c5 – Black plays the pawn to c5
4. cxd5 – White captures on d5 with the c-pawn
4... exd5 – Black captures on d5 with the e-pawn
5. g3 – White plays the pawn to g3
5... Nc6 – Black plays the knight to c6
6. Bg2 – White plays the bishop to g2
6... Nf6 – Black plays the knight to f6
The line goes on for 8 more moves; the lesson shows them all.
About the Queen's Gambit Declined
After 1.d4 d5 2.c4, Black keeps the d5 pawn with ...e6 instead of taking on c4. It is solid, classical and very reliable.
Black develops calmly: ...Nf6, ...Be7, ...O-O, and keeps a strong pawn on d5.
The light-squared bishop on c8 is often stuck behind e6; freeing it is a main task.
Black frees the position with the breaks ...c5 or ...e5; White often plays for a minority attack with b4-b5.
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