D10

Slav Defense: Exchange Variation, Boor Attack

Chess diagram: Slav Defense: Exchange Variation, Boor Attack after 5. f3

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

124,607 games: White 54.1% / Draw 4.5% / Black 41.4%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
55,68256K
25,81226K
25,74526K
6,5526,552
6,0406,040
2,2882,288
660660
450450

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026

Engine evaluation

+0.02 The position is about equal

Best play: 5... Qb6 6. e3 Nc6 7. Qb3 Qxb3 8. axb3 h5 9. Kf2 a6 10. Bd2

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

Overview

Slav Defense: Exchange Variation, Boor Attack (ECO D10, Closed & Semi-Closed Games) is a variation of the Slav Defense: Exchange Variation, reached after 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3 (5 moves).

In 124,607 rated Lichess games between players rated 1600 to 2500, White won 54.1%, Black 41.4% and 4.5% were drawn. Black's most played move here is 5…Nc6, in 45% of those games.

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How to play against the Slav Defense: Exchange Variation, Boor Attack

5…a6 scores best for Black: 44.6%, with Black winning 42.5% and White 53.2% of 6,552 games. The most played, 5…Nc6, scores 43.2% in 56K games, and 5…e6 scores lowest: 42.7%. Stockfish's first choice is 5…Qb6.

Main answers: those played in at least 5% of these games. Score: Black's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Cite this page

Caissa Codex. “Slav Defense: Exchange Variation, Boor Attack (D10)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/slav-defense-exchange-variation-boor-attack