Slav Defense: Exchange Variation, Boor Attack
1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3
The Slav Defense: Exchange Variation, Boor Attack is a chess opening classified as ECO D10, reached after 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3. It is a line of the Slav Defense. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 136 times by this move order. White won 54%, 6% were drawn and Black won 40%. The most popular continuation is 5… Nc6 (40% of games).
Engine evaluation: −0.14 (Stockfish, depth 55; best line 5… Qb6 6. e4 dxe4 7. fxe4 e5 8. dxe5)
- ECO
- D10
- Moves
- 9 plies
- FEN
rnbqkb1r/pp2pppp/5n2/3p4/3P4/2N2P2/PP2P1PP/R1BQKBNR b KQkq - 0 5- PGN
1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 26 | |
| 1500-1999 | 45 | |
| 2000+ | 65 | |
| All | 136 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 5… Nc6 | 54 (40%) | |
| 5… e6 | 32 (24%) | |
| 5… Bf5 | 25 (18%) | |
| 5… a6 | 10 (7%) | |
| 5… g6 | 9 (7%) | |
| 5… Qb6 | 4 (3%) | |
| 5… h6 | 1 (1%) | |
| 5… Qa5 | 1 (1%) |
Master games
190 over-the-board games are classified under this line (White 50%, draw 23%, Black 27%). The strongest:
- GM Ivan Ivanisevic (2611) – GM Tamas Banusz (2608) 1-0 · TCh-SRB Premier 2017 · 2017-09-09
- GM Simon K Williams (2467) – GM Gata Kamsky (2634) 1/2-1/2 · Titled Tue 5th Dec Early · 2023-12-05
- GM Simon K Williams (2467) – GM Aleksandr Shimanov (2566) 0-1 · Titled Tue 25th Jul Early · 2023-07-25
- GM Simon K Williams (2442) – GM Sergey Drygalov (2542) 0-1 · Titled Tue 17th Sep Early · 2024-09-17
- GM Ivan Ivanisevic (2583) – FM Ivan Yeletsky (2401) 1/2-1/2 · Chigorin Memorial 2018 · 2018-10-31
Search all games of the Slav Defense: Exchange Variation, Boor Attack and its sub-variations
Highest-rated Lichess games
- alexa0112358 (2496) – Justbulletok (2526) 1-0 · 2026-09-02 · 180 + 0s
- alexa0112358 (2502) – CJ58 (2468) 1-0 · 2026-09-04 · 180 + 0s
- McDooms (2519) – alejandromagno92 (2417) 1-0 · 2026-09-03 · 180 + 0s
Comes from
Slav Defense: Exchange Variation (2… c6 3. cxd5) 1. d4 d5 2. c4 c6 3. cxd5
More Slav Defense lines (all)
- Slav Defense (2. c4 c6) D10
- Slav Defense (2… c6 3. Nc3) D10
- Slav Defense (3. Nc3 dxc4) D10
- Slav Defense: Diemer Gambit D10
- Slav Defense: Slav Gambit, Alekhine Attack D10
- Slav Defense: Winawer Countergambit D10
- Slav Defense: Winawer Countergambit, Anti-Winawer Gambit D10
- Slav Defense: Bonet Gambit D11
- Slav Defense: Breyer Variation D11
- Slav Defense: Modern Line (2… c6 3. Nf3) D11
- Slav Defense: Modern Line (5. Bg2 g6) D11
- Slav Defense: Modern Line (5… e6 6. O-O) D11
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.