Home › Openings › Slav Defense › Slav Defense: Exchange Variation Slav Defense: Exchange Variation, Boor Attack ECO D10 · 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3 Related variationsSlav Defense: Exchange Variation, Schallopp VariationSlav Defense: Exchange Variation, Symmetrical LineSlav Defense: Exchange Variation, Trifunovic Variation Practice this opening · Play against the computer