The Exchange Variation, Boor Attack is a variation of the Slav Defense, catalogued as ECO D10. The line runs 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3, reaching the position shown below after 9 half-moves.
Both sides have pawns in the centre (White on d4, Black on d5). Development is level at one minor pieces each. It is Black to move after five moves. The c-file file is fully open.
On the Slav Defense generally: A solid defense to the Queen's Gambit. Black supports d5 with c6 while keeping the bishop active.
You can play through this variation move by move in your browser — Learn mode walks the line with an explanation at each step, and Drill mode replays it from memory so you find out whether you actually know it. No account is required.
See all 32 Slav Defense variations →
The Exchange Variation, Boor Attack goes 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3. It is a variation of the Slav Defense and is catalogued as ECO D10.
The Exchange Variation, Boor Attack is ECO D10. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Slav Defense.
Stockfish evaluates the position after 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3 at -0.14 at depth 18, which is balanced. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
Both sides have pawns in the centre (White on d4, Black on d5). Development is level at one minor pieces each. It is Black to move. The c-file file is fully open.