Slav Defence

For Black · ECO D10-D19 · 28 moves (plies) in the main line

The Slav Defence (1.d4 d5 2.c4 c6) leads to a sharp central struggle in which Black temporarily accepts a pawn deficit, completes development, and seeks resilient counterplay against White's advanced e-pawn.

Themes: central-tension, pawn-grab, active-development, space-struggle, blockade

Key ideas

  • Black's 4...dxc4 releases central tension and asks White to spend time recovering the c-pawn.
  • After 10.e4, Black's pieces target the center while the bishop repeatedly pressures White's kingside development.
  • White's 12.e5 gains space, but 12...Nd5 establishes a centralized blockader.
  • The exchange on 13.Nxd5 gives Black a c-pawn on d5 that supports central control.

Plans for Black

  • Use 5...Bf5 and 9...Bg6 to develop the light-squared bishop before closing the center.
  • Castle with 10...O-O before meeting White's central advance on move 12.
  • Answer 12.e5 with 12...Nd5, placing the knight in front of White's advanced pawn.
  • After 13...cxd5, regroup with 14...Be7 and prepare coordinated piece pressure around the center.

Plans for White

  • Recover the gambited pawn with 7.Bxc4 while completing kingside development.
  • Build a broad center through 10.e4 and 12.e5, gaining space against Black's knights.
  • Use 11.Bd3 and 14.Qe3 to align pieces toward Black's kingside.
  • Trade the centralized knight with 13.Nxd5 to reduce Black's active piece play.

Mistakes to avoid

  • Holding the c4-pawn too long after 4...dxc4 can leave Black behind in development.
  • Allowing 10.e4 without castling first leaves Black's king vulnerable as the center closes.
  • Retreating the knight passively after 12.e5 concedes White's space advantage without creating a blockader.
  • Leaving the bishop exposed on h5 after White's center advances can cost time and coordination.

Target ratings

The final position received an engine evaluation of −0.3 pawns at depth 16.

  • 1600–1800 blitz: +0.8 points above the other moves, over 6,519,996 games

Explored with: Lichess games at 1600–1800 blitz; practical search (aggressive risk); engine depth 16; 12 moves explored; from 1.d4 d5 2.c4 c6; as Black.

The main line

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O Nbd7 9.Qe2 Bg6 10.e4 O-O 11.Bd3 Bh5 12.e5 Nd5 13.Nxd5 cxd5 14.Qe3 Be7

Study and practice it

Play through the Slav Defence move by move in Quick Review, or explore its branches in Deep Dive, right on this page. Sign up to add it to your repertoire and practice it with spaced repetition in Opening Lab.