The Caro-Kann Defense
The Caro-Kann begins 1.e4 c6 2.d4 d5. Like the French, Black challenges e4 at once. Unlike the French, the pawn that supports d5 is on c6, so the light-squared bishop can leave c8 before e6 is played. Black accepts a slightly smaller position in exchange for a sound structure and a bishop that is not buried.
The classical center
White's most common try is 3.Nc3 or 3.Nd2. Black takes: 3...dxe4 4.Nxe4. Then 4...Bf5 develops the problem bishop with tempo against the knight, and after 5.Ng3 Bg6 Black continues ...e6, ...Nf6, ...Nbd7, and castles. The other main option is 4...Nd7, keeping Bf5 in reserve and preparing ...Ngf6 to challenge the knight on e4.
White has a space advantage and easier piece play. Black's position has no structural hole. The job for Black is to finish development without allowing a sudden hit on the uncastled king, then look at ...c5 to challenge d4 once the king is safe.
The advance
3.e5 gains space and keeps pieces on the board. Black's light-squared bishop usually comes out at once with 3...Bf5, and a normal follow-up is 4.Nf3 e6 5.Be2 c5 or ...Ne7 and ...Nd7. Black chips at d4 with ...c5, the same idea as in the French, with the bishop already outside the chain.
White tries to prove the space matters: Nbd2, c3, Be3 or Bg5, and sometimes a kingside pawn advance if Black castles short. Black should not panic about the missing space. Complete development, trade a pair of minor pieces, and the position opens into something you can play.
The exchange
3.exd5 cxd5 gives Black a pawn on d5 and an open c-file, which is the file Black's pawn just left. Development is natural: Nf6, Nc6, Bf5 or Bg4, e6, Be7, and castle. White has no structural target. The game becomes a fight over the c-file and the e5 square.
This is a good structure to study if you want piece play without memorizing fifteen moves. Put a rook on the c-file, watch the d4 and d5 pawns, and do not rush pawn moves on the wing where your king lives.
Tactics in a quiet opening
Solid does not mean tactic-free. Early queen sorties and loose pieces on the c-file produce short games, which is why the Caro-Kann has a whole family of traps. The concrete versions are collected in ten Caro-Kann traps. Learn the plans on this page first, then learn the two or three tricks that punish a careless move order.
Frequently Asked Questions
Is the Caro-Kann better than the French?
It solves a different problem. The French fights for the center with a pawn on e6 and a harder bishop. The Caro-Kann develops that bishop and accepts a slower start. Pick the one whose pawn structure you understand.
Why is Black a move behind?
Because ...c6 and ...d5 have both been played to challenge e4, where one central pawn move would have done a similar job. The compensation is the structure.
What should I play against it as White?
3.Nc3 and 4.Nxe4 is the critical test. The advance is the best choice if you want a space advantage without allowing Black to trade off your e-pawn on move 3.
A small position with a free bishop
Play 1.e4 c6 2.d4 d5 a few times on Play vs AI, once with each third move, and compare the games. The French comparison is in the French Defense. When a middlegame appears that you do not understand, step through it with chess hints.
Try the line on the board with chess hints.