Home › Openings › Semi-Slav Defense › Semi-Slav Defense: Noteboom Variation Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Gambit ECO D31 · 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. g3 Related variationsSemi-Slav Defense: Noteboom Variation, Anti-Noteboom VariationSemi-Slav Defense: Noteboom Variation, Abrahams Variation Practice this opening · Play against the computer