Home › Openings › Tarrasch Defense › Tarrasch Defense: Prague Variation Tarrasch Defense: Prague Variation, Main Line ECO D34 · 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 Practice this opening · Play against the computer