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Slav Defense

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You play Black · 27 variations

Mixed practice

The machine picks a different variation every time.

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10 positions: find the next theory move in each. No take-backs, no hints.

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Opponent strength after the book

Opponent strength after the book

Stockfish 19 · UCI_Elo

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Main variations · 17

Other variations · 10

What is the Slav Defense?

The Slav Defense begins 1.d4 d5 2.c4 c6. Black supports the d5 pawn with the c-pawn instead of the e-pawn, so the light-squared bishop on c8 can still come out to f5 or g4 before ...e6. That solves the classic problem piece of the Queen's Gambit Declined. The result is a solid opening that is still full of fight, and one of the main defences to the Queen's Gambit at every level.

Main ideas and plans

In the main line, 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4, you take the c4 pawn and threaten to hold it with ...b5. White usually stops that with a4, leading to the Czech Variation, 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5, where your bishop develops actively and you give the pawn back on good terms. In the Dutch Variation, 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O, you have a comfortable classical position and later free your game with ...c5 or ...e5. The Krause Attack with Ne5 is sharper. The Chebanenko Variation, 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 a6, is a flexible alternative: you prepare ...b5 or wait for White to commit before deciding where the bishop goes.

White can also sidestep the sharp theory. The Exchange Variation, 1.d4 d5 2.c4 c6 3.cxd5 cxd5, gives a symmetrical structure in which White hopes for a small, lasting edge with Bf4, Rc1 and pressure on the c-file; you equalise by developing quickly and contesting that file, not by copying moves blindly. In the Quiet Variation, 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3, White protects c4 in advance but shuts in his dark-squared bishop. You can answer with ...Bf5 or ...Bg4 before playing ...e6, but keep an eye on the queen sortie to b3 that hits b7.

Who is it for?

The Slav suits players who want a reliable answer to 1.d4 with a clear pawn structure and active pieces. Its downside is that the Exchange Variation can lead to dry, drawish positions, and the main lines with ...dxc4 need precise knowledge: a careless move can leave your bishop on f5 exposed to knight attacks or let White build a big centre with e4. First learn the Czech Variation with the bishop on f5 and the typical ...e6 and ...Bb4 set-up, and have a clear plan against the Exchange Variation.