Caro-Kann Defense (B10)
A solid defense with a strong pawn structure. Favors strategic, endgame-oriented players.
Taught for Black · 5 study lines · main line: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6…
Free spaced-repetition drills — no account needed to analyze, and the trainer remembers what you have learned.
How do you reach the Caro-Kann Defense?
1.e4 c6 — Black prepares 2...d5, staking a claim in the center while keeping the c8-bishop’s diagonal open. That one detail (the bishop gets OUT before ...e6) is what separates the Caro-Kann from the French.
What does the Caro-Kann Defense give you — and cost you?
For
- Famously solid: sound structure, safe king, and no early weaknesses.
- The light-squared bishop develops actively — the French player’s eternal problem, solved.
- Excellent endgames: the c6/e6 structure ages beautifully.
Against
- Less immediate counterpunch than a Sicilian — winning takes patience.
- White picks the pawn structure (Advance, Exchange, Classical), so you must know three plans.
- A tempo behind similar setups: Black must respect White’s initiative.
What is the plan in the Caro-Kann Defense?
A French-like structure — but Black develops the light-squared bishop to f5 BEFORE ...e6, the whole point of the Caro-Kann.
When is the Caro-Kann Defense plan on — and when is it off?
Look for
- The c8-bishop gets a job before ...e6 closes the door — ...Bf5 or ...Bg4 first is the entire point of the move order.
- Against the fixed d4–e5 chain, ...c5 strikes the base — and ...Qb6 can double-question d4 and b2.
- When a White knight lands on e4, ...Bf5 develops with tempo by hitting it.
Hold back when
- The Panov’s c4 makes it a piece-play opening, not a chain siege — there is no base to attack, so switch plans.
- If dxc5 would hold the extra pawn cleanly, add attackers before playing the break.
Which Caro-Kann Defense lines should you study?
Classicalalso known as: Caro-Kann Defense: Classical Variation, Spassky Variation
1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 e6
Final book move played in 6,248 master games.
The main line: after 4...Bf5 you develop the "problem bishop" actively before playing ...e6. White chases it with h4–h5, but every tempo he spends is one your solid structure absorbs.
The bishops have traded on d3 and your structure is the classical Caro wall: c6/e6, no weaknesses. Castle either side — against White’s kingside space, queenside castling with ...Qc7 and ...O-O-O is thematic. Play ...c5 at the right moment to open your files. Your position is a fortress that counterattacks; the endgame is your friend.
Advancealso known as: Caro-Kann Defense: Advance Variation, Short Variation
1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2 Nd7 6.O-O Ne7 7.Nbd2 h6 8.Nb3 g5 9.a4 Bg7 10.a5 Qc7
Final book move played in 97 master games.
Against 3.e5 the modern treatment is flexible: ...Bf5, ...e6, then the surprising ...g5!? grabbing kingside space while White’s pieces sit passively. This is the fighting answer to the Advance.
The closed center means flank play, and you struck first: the g5–g4 push gains space and asks the f3-knight where it is going. Your king can stay in the middle or go long; the g7-bishop pressures e5. White’s a4–a5 counterplay is slow. An unusual structure — but you chose it, you know it, and White probably does not.
Exchangealso known as: Caro-Kann Defense: Panov Attack, Main Line
1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Bb4 7.cxd5 Nxd5 8.Bd2 Nc6 9.Bd3 O-O 10.O-O Be7
Final book move played in 627 master games.
After 3.exd5 cxd5 White usually goes for the Panov with c4, turning a "boring" exchange into an isolated-queen-pawn battle. Meet it with ...e6 and ...Bb4 — develop with tempo, then blockade.
White’s isolated d-pawn defines everything: it gives his pieces activity now and gives you a target forever. Blockade d5 with a knight, trade minor pieces (each trade magnifies the pawn’s weakness), and keep your structure clean. His activity peaks around move twenty — survive it and the endgame plays itself.
Van der Wiel Attackalso known as: Caro-Kann Defense: Advance Variation, Van der Wiel Attack
1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 e6 5.g4 Bg6 6.Nge2 c5 7.h4 h5 8.Nf4 Bh7 9.Nxh5 Nc6 10.dxc5 Bxc5
Final book move played in 166 master games.
The Advance Caro’s wildest handling: 4.Nc3 and 5.g4 chase your bishop across the board. Don’t flinch — 6...c5 counterattacks the base while his pawns overextend, and 9...Nc6 develops into the storm.
He spent four pawn moves hunting a bishop that now sits safely on h7 — 10.dxc5 Bxc5 hands you development and the d4-square as rent for the h5-pawn. His king has no quiet home: the g4/h4 wing is air, the centre is unresolved. Play ...Nge7–f5 (or ...Qb6 hitting b2 and f2 first), castle short behind his own weakened pawns’ line of fire, and open the centre while his forces face the wrong way. Engine-verified equality that only one side usually understands.
Flohr Variationalso known as: Caro-Kann Defense: Classical Variation, Flohr Variation
1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nh3 e6 7.Nf4 Bd6 8.c3 Nf6 9.h4 Bxf4 10.Bxf4 h6
Final book move played in 93 master games.
Against the Classical Caro, the offbeat 6.Nh3 heads for f4 to harass your g6-bishop — and 7...Bd6 with 9...Bxf4 answers cleanly: trade the harasser and keep the structure that makes the Caro famous.
After 10.Bxf4 h6 your position has no targets: the e6/d5 shell is granite, the g6-bishop found its diagonal, and his bishop pair has no open lines to enjoy. Complete with ...Nbd7, ...Qa5+/...O-O-O or short castling by taste, and the standard Caro plans run: ...c5 break when developed, minor-piece trades toward the famous endgame, and the h4-pawn he advanced is a hook your ...h6/...g5 can open later. Patience converts structure; that is the whole Caro covenant.
What do opponents play against the Caro-Kann Defense at your level?
Reply shares from Lichess blitz, rapid and classical games, split by the rating band of the players — because the sideline that dominates beginner games often disappears entirely from stronger ones. Book moves in the study line are marked.
From the starting positionstudy line continues e4
| Lichess band | Most played | 2nd | 3rd |
|---|---|---|---|
| <1200 | e4 66.5%book | d4 20.7% | e3 2.9% |
| 1200s | e4 66.3%book | d4 21.9% | Nf3 2.3% |
| 1400s | e4 64.8%book | d4 23.2% | c4 2.6% |
| 1600s | e4 62.6%book | d4 24.8% | c4 3.2% |
| 1800s | e4 59.6%book | d4 26.7% | c4 3.9% |
| 2000s | e4 55%book | d4 29.1% | c4 4.9% |
| 2200+ | e4 48.8%book | d4 32.4% | Nf3 7.7% |
After 1.e4study line continues d4
| Lichess band | Most played | 2nd | 3rd |
|---|---|---|---|
| <1200 | Nf3 31.2% | d4 31%book | Bc4 12.4% |
| 1200s | d4 34.5%book | Nf3 34.2% | Bc4 11.5% |
| 1400s | d4 37.1%book | Nf3 33.6% | Bc4 10.3% |
| 1600s | d4 42.1%book | Nf3 30.7% | Bc4 7.8% |
| 1800s | d4 50.2%book | Nf3 25.4% | Nc3 6.6% |
| 2000s | d4 59.7%book | Nf3 18.8% | Nc3 7.8% |
| 2200+ | d4 66.5%book | Nf3 12.9% | Nc3 9.6% |
Shares are of games in each band at that position, from the Lichess opening explorer data the trainer itself studies from.
How often do opponents go wrong against the Caro-Kann Defense?
Of the players who reach the Caro-Kann Defense (after 1.e4 c6), the share who make a mistake or blunder on the lines we teach, by rating band. Every reply is graded against Stockfish with the game review's own labels; each figure is a lower bound. How we measure.
| Lichess band | Make a mistake | Within | Games |
|---|---|---|---|
| <1200 | 13% | 10 moves | 18M |
| 1200s | 12% | 10 moves | 24M |
| 1400s | 11% | 10 moves | 37M |
| 1600s | 9% | 10 moves | 47M |
| 1800s | 6% | 10 moves | 45M |
| 2000s | 2% | 10 moves | 27M |
| 2200+ | 1% | 10 moves | 11M |
How should you learn the Caro-Kann Defense?
Moves first, then the idea behind each move, then spaced review until recall is automatic — the method, the review schedule, and why cramming fails are covered in the opening-learning guide. The trainer here implements it directly: guided learning with the reason attached to each move, validation before practice, and a Leitner review ladder that keeps the lines you drill from evaporating.
Frequently asked questions
9% of Lichess players rated 1600–1799 who reach the Caro-Kann Defense make a mistake or blunder on the lines we teach within the first 10 moves (47M games, a lower bound). Every reply is graded against Stockfish with the same Mistake and Blunder labels as the game review; the full method is on our how-we-measure page.
AxiomChess teaches 5 study lines for this opening, each roughly ten moves deep — sourced from master practice and checked move-by-move against Stockfish before being taught. Depth past the point where a plan takes over adds review cost without adding wins.
Every move in the study lines here is engine-checked before it is taught, so the lines themselves hold up. The honest trade-offs are listed above — less immediate counterpunch than a sicilian — winning takes patience — and knowing when the plan does not apply matters as much as the moves.
Your games already show which openings you actually reach and where they go wrong — the trainer picks drills from your own measured slips.
Analyze your games free