Slav Defense: Czech Variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5

Slav Defense: Czech Variation is catalogued under ECO code D17. It is reached after 5 moves (10 half-moves): 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5. After the last move it is White to play. White opens 1. d4. It is a named variation of the Slav Defense, which has 52 catalogued lines in total.

Position shown after the last move; White to play.