Chess Openings → Slav Defense

Slav Defense: a solid plan after 1.d4 d5

The Slav Defense begins with 1.d4 d5 2.c4 c6 — you defend the d5 pawn with your c-pawn instead of closing the bishop's diagonal with e6 as in the Queen's Gambit Declined. This way the bishop on c8 gets out to the open f5 square before you build the e6-d5 pawn chain. It's the same logic as in the Caro-Kann Defense, just one move later and after 1.d4 instead of 1.e4 — a solid, proven choice for Black against the Queen's Gambit.

In short: after 2.c4 you play 2...c6, defending d5 with a pawn instead of e6. The main line is 3.Nf3 Nf6 4.Nc3 Bf5 5.e3 e6 — the setup is complete: an active bishop on f5, a supported center, and next Nbd7 and short castling. White's other replies each have their plan below. You can practice the full repertoire — with branches for every sensible move order White might choose — in the opening trainer, free and without an account.

Starting position and the idea

After 1.d4 d5 2.c4, White offers the Queen's Gambit: if you capture on c4, White temporarily gives up a pawn to gain a tempo in development. Instead of capturing or playing 2...e6, you play 2...c6 — defending the d5 pawn with a pawn and leaving the c8-h3 diagonal open for the bishop. It's the same idea as in the Caro-Kann Defense after 1.e4, just one move later and after 1.d4: the bishop on c8 gets out to f5 before you close it in with your own pawn chain. Black's follow-up plan — Bf5, e6, Nf6, Nbd7 and short castling — is ready almost regardless of the order in which White develops the pieces.

White's most common replies

• 3.Nf3 Nf6 4.Nc3 Bf5 5.e3 e6 — this is the repertoire's main line: White develops the knights, and you get the bishop out to f5 before playing e6. The setup is complete and evaluated as equal; next: Nbd7, Bd6/Be7 and short castling.
• 3.Nc3 Nf6 4.Nf3 Bf5 5.e3 e6 — White develops the knights in the reverse order, but this leads to exactly the same equal position as the main line — you only need to know one plan for both move orders.
• 5.c4xd5 c6xd5 (instead of 5.e3) — White trades in the center before developing further. This creates a symmetrical, very solid structure; next: e6, Nbd7, Bd6/Be7 and castling.

Honestly, about this page's scope

The above is a sketch of the plan, not a full trainer with every branch and typical opponent mistakes. The full Slav Defense repertoire — including variations for other White move orders and an exact evaluation of every line verified by the Stockfish engine — is waiting in the opening trainer inside the app. Before playing your first opening, it's also worth knowing the 5 rules that win most games — the Slav Defense is just one way of putting those rules into practice.

More openings (including the Italian Game, the Sicilian Defense, and the French Defense) are covered on the Chess Openings page. Want to practice these same principles right away against an opponent? Play a game against the computer at any difficulty level.

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