Openings · B10–B19

Caro-Kann Defence

The French's solidity without the bad bishop: …c6 first, so the bishop gets out before …e6 shuts the door.

1.e4 c6played as Black

Play it through on the board below, and 6 moves into the main line.

Practise the line

You play Black; the other side answers on its own. Nothing here is saved or graded. The line runs on past the moves that define the opening and into the main line, because two moves is not a drill.

1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
Your move 1 of 40/4
  1. 1.e4c6
  2. 2.d4d5
  3. 3.Nc3dxe4
  4. 4.Nxe4Bf5

White is answering…

The idea

1…c6 prepares …d5 with the c-pawn instead of the e-pawn. The point is move order: after …d5 and an exchange on e4, the bishop comes out to f5 or g4 first, and only then does …e6 go in behind it.

The cost is a tempo and a slightly passive game. Black is rarely worse and rarely much better; the wins come from the endgames the structure produces.

Common mistakes

Three that come up again and again below master level: named traps and the errors every coach corrects.

Playing …e6 before the bishop is out

After 3…e6
  1. 1.
  2. 2.
  3. 3.
The mistake
Blocking the c8 bishop in with …e6 before it has been developed.
Why it costs
That is a French Defence in which Black has spent a move on …c6 rather than the useful …c5. The one thing the Caro-Kann is for has been given away, and the drawback has been kept.
Instead
…dxe4 and …Bf5, or …Bg4 in the lines that allow it. The bishop leaves first; …e6 follows it.

The knight on d7 and mate on d6

After 6.Nd6#
  1. 1.
  2. 2.
  3. 3.
  4. 4.
  5. 5.
  6. 6.
The mistake
Developing the second knight to f6 without looking at what the queen on e2 is doing.
Why it costs
It is smothered mate on move six. The knight on d7 blocks the king's escape, the queen on e2 covers the file, and Nd6 is mate — a famous trap precisely because the losing move is the natural one.
Instead
…Ngf6 is right in this variation only after …Qc7 or …e6 has dealt with d6. With the queen on e2, look at d6 before touching the knight.

Sitting still in the Advance

After 5…Nd7
  1. 1.
  2. 2.
  3. 3.
  4. 4.
  5. 5.
The mistake
Treating the Caro-Kann as a fortress and letting White expand unopposed.
Why it costs
Solid is not the same as passive. Left alone, White plays g4, h4 and c4 and takes the whole board; the position has no weaknesses and no future.
Instead
Hit d4 with …c5, and back it with …Nc6 and …Qb6. The structure is solid so that you can afford to start something, not instead of starting something.

In real games between beginners

  • 1 in 90games end with Black giving checkmate by move 15. In all openings: 1 in 54.
  • 1 in 66games end with Black getting checkmated by move 15. In all openings: 1 in 33.

From 18,822 Lichess games in this opening between players rated under 1200, blitz and slower, September 2026. How we counted.

What the engine says

After 1.e4 c6, these are White's six best moves according to Stockfish, with the bar showing White's chance of winning. The whole list sits within 3 percentage points of win chance: none of them is a mistake, and the choice is about the positions you want to play.

  1. d4+0.4
  2. c4+0.3
  3. Nc3+0.3
  4. Nf3+0.3
  5. c3+0.2
  6. Be2+0.1

The engine's main line from d4: d4 d5 e5 Bf5 h4 h5 c4 e6.

Stockfish 18, depth 24. Scores are in pawns from White's side. Another engine or depth will move individual numbers a little; the picture does not change. How we check.

Where it fits

The lines out of it with pages of their own: Caro-Kann, Advance and Caro-Kann, Exchange.