Caro–Kann defence

From Simple English Wikipedia, the free encyclopedia
Jump to navigation Jump to search
The Caro–Kann defence
Start of chess board.
a8 black rook b8 black knight c8 black bishop d8 black queen e8 black king f8 black bishop g8 black knight h8 black rook
a7 black pawn b7 black pawn c7 __ d7 __ e7 black pawn f7 black pawn g7 black pawn h7 black pawn
a6 __ b6 __ c6 black pawn d6 __ e6 __ f6 __ g6 __ h6 __
a5 __ b5 __ c5 __ d5 black pawn e5 __ f5 __ g5 __ h5 __
a4 __ b4 __ c4 __ d4 white pawn e4 white pawn f4 __ g4 __ h4 __
a3 __ b3 __ c3 __ d3 __ e3 __ f3 __ g3 __ h3 __
a2 white pawn b2 white pawn c2 white pawn d2 __ e2 __ f2 white pawn g2 white pawn h2 white pawn
a1 white rook b1 white knight c1 white bishop d1 white queen e1 white king f1 white bishop g1 white knight h1 white rook
End of chess board.
White to move

The Caro–Kann defence is a chess opening. It is a defence for Black when White opens by moving his King's pawn two squares on the first move. It begins:

1.e4 c6

Usually, the next moves are:

2.d4 d5

It is then followed by 3.Nc3 (the Modern Variation), 3.Nd2 (the Classical Variation), 3.exd5 (the Exchange Variation), or 3.e5 (the Advance Variation). The modern variation (3.Nc3) is most popular.

The Caro–Kann, like the Sicilian defence and French defence, is an asymmetrical defence to 1.e4. These are sometimes called 'semi-open games'. The Caro is thought to be more solid and less dynamic than the others, which means that play is likely to be more quiet and positional. It may lead to good endgames for Black, who has the better pawn structure.

The opening is named after the English player Horatio Caro and the Austrian Marcus Kann, who studied the opening in 1886.

Classical or Capablanca variation[change | change source]

The most common way of handling the Caro–Kann, the Classical variation (often called the Capablanca variation) happens after the moves

1.e4 c6
2.d4 d5
3.Nc3 (or 3.Nd2) dxe4
4.Nxe4 Bf5

For a long time, this was thought to be the best play for both sides in the Caro–Kann. White usually continues

5.Ng3 Bg6
6.h4 h6
7.Nf3 Nd7
8.h5 Bh7
9.Bd3 Bxd3

Although White's pawn on h5 looks ready to attack, it can prove to be a weakness in an endgame.

This variation is a big reason that people think the Caro-Kann is a solid defence. Black makes very few compromises in his pawn structure, and plays c5 in time to fight for the d4 square. Black can castle queenside, castle kingside, or even leave his king in the centre. Should the game go to an endgame, Black often has good chances because of his solid pawn structure and kingside pawn majority.

Smyslov or Modern variation[change | change source]

Another solid positional line is the Modern variation. It happens after the moves

1.e4 c6
2.d4 d5
3.Nc3 (or 3.Nd2) dxe4
4.Nxe4 Nd7

Played by the first world champion Wilhelm Steinitz, today the variation is called either the Smyslov variation or, most often, the Modern variation.

The short-term goal of 4...Nd7 is to make developing his pieces easier by trading a pair of knights without damaging his pawn structure by the direct 4...Nf6. Play is similar to the Classical variation except that Black is not forced to play his QB to the g6 square. However, this freedom comes at a cost as White is able to take up space in the center. White often plays the aggressive 5.Ng5!? pressuring key points such as the f7-square.

This variation can lead to a quick mating trap with 5.Qe2 Ngf6?? 6.Nd6#.

4...Nf6 variations[change | change source]

Two variations begin with:

1.e4 c6
2.d4 d5
3.Nc3 dxe4
4.Nxe4 Nf6!?

The Bronstein–Larsen Variation is after:


Black has chosen a worse pawn structure, and often castles queenside. Black does have compensation, with the open g-file for the rook and unusually active play for the Caro-Kann. It is generally considered somewhat double-edged.[1]

The Korchnoi Variation arises after:


Viktor Korchnoi has played 5...exf6 many times (including his first world championship match with Anatoly Karpov), and this line has also been employed by Ulf Andersson. Black's 5...exf6 is thought to be sounder than 5...gxf6!? of the previous and offers Black fast development, though also giving White the superior pawn structure and long-term prospects.

Advance variation[change | change source]

The Advance variation is 3.e5:

1.e4 c6
2.d4 d5

The main replies are:

3...Bf5 is most often played. Against it are aggressive lines such as the Bayonet Attack (4.Nc3 e6 5.g4), a popular line in the 1980s and later favoured by Latvian Grandmaster Alexei Shirov. A more natural development 4.Nf3 e6 5.Be2 c5 6.Be3 was popularised by English Grandmaster Nigel Short and often seen in the 1990s.

3...c5 is an important alternative which avoids the opening theory on 3...Bf5. It was used by Botvinnik in his 1961 match with Tal. In comparison to the French defense, Black gains the tempo normally spent on ...e6. However, White can counter this by opening the centre with 4. dxc5. This exposes the black pawn on d5.

3...e6 is natural and playable, but when Black plays ...c5 (as he soon will do) he is a tempo behind the advance line of the French defence (1e4 e6 2.d5 d5 3.e5 c5).

Exchange variation and Panov-Botvinnik Attack[change | change source]

The Exchange Variation is 1.e4 c6 2.d4 d5 3.exd5 cxd5. The Panov-Botvinnik Attack begins with the move 4.c4.

This system often leads to typical isolated queen's pawn (IQP) positions, with White gaining rapid development, a grip on e5, and kingside attacking chances to make up for the long-term structural weakness of the isolated d4 pawn. The major variation in this line 4...Nf6 5.Nc3 e6 6.Nf3, when Black's main alternatives are 6...Bb4 (a position which often transposes into lines of the Nimzo-Indian defence) and 6...Be7, once the most common line. 6...Nc6?! is inferior as it is favourably met by 7.c5!, after which White plans on seizing the e5-square through the advance of his b-pawn to b5 or by exchanging the Black's Knight on c6 after Bb5.

The "true" Exchange Variation begins with 4.Bd3 Nc6 5.c3 Nf6 6.Bf4 Bg4 7.Qb3 This line is thought to have equal chances for both sides, and was tried by Bobby Fischer. Some of the strategic ideas are analogous to the Queen's Gambit declined, Exchange variation, (1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5) with colours reversed.

Two knights variation[change | change source]

This is 1.e4 c6 2.Nf3 d5 3.Nc3, played by Bobby Fischer in his youth. White gets rapid development and has options with the d-pawn. Black's logical and probably best reply is 3...Bg4. After 4.h3 Bxf3 5.Qxf3, the positional continuation, Black has the option of 5...Nf6 or 5...e6. 4....Bh5 is a complicated line, in which White can trap the bishop, though Black has much compensation.

The variation sets a trap: if Black plays along the lines of the Classical Variation, he gets in trouble after 3...dxe4 4.Nxe4 Bf5 (4...Nd7 is playable) 5.Ng3 Bg6?! (5...Bg4) 6.h4 h6 7.Ne5 Bh7 (7...Qd6 may be best) 8.Qh5! g6 (forced) 9.Bc4! e6 (9...gxh5?? 10.Bxf7#) 10.Qe2 with a huge advantage for White. Now 10...Qe7! is best. Instead, Lasker–Radsheer, 1908 and Alekhine-Bruce, 1938 ended quickly after, respectively, 10...Bg7?? 11.Nxf7! and 10...Nf6?? 11.Nxf7![2][3]

Other lines[change | change source]

White can play 2.c4. Then Black may play 2...d5 (see 1.e4 c6 2.c4 d5). This can transpose to the Panov–Botvinnik line given above, with 3.exd5 cxd5 4.d4 or White can capture twice on d5. Alternatively, Black may play 2...e5.

Also, White can play 2.Nc3. Then Black may play 2...d5. If White replies 3.d4 then we get the main Capablanca line or the Two knights variation. Or Black may play 2...g6.

The Caro–Kann can also be reached through the English Opening: 1.c4 c6 2.e4 d5.

ECO codes[change | change source]

The Encyclopaedia of Chess Openings has ten codes for the Caro–Kann Defence, B10 to B19.

Related pages[change | change source]

More reading[change | change source]

  • Houska, Jovanka (2007). Play the Caro–Kann: a complete chess opening repertoire against 1 e4. London: Everyman Chess. ISBN 1857444345.
  • Martin, Andrew 2007. The ABC of the Caro Kann. ChessBase Publications. Fritz Trainer DVD.
  • Gallagher, Joe (2002). Starting out: the Caro–Kann. Everyman Chess. ISBN 1-85744-303-9.

Also, more advanced:

References[change | change source]

  1. Silman, Jeremy (1990). Dynamic Karo Kann. Summit Pub. ISBN 9780945806028.
  2. Lasker–Radsheer, simultaneous exhibition 1908. Retrieved on 2009-04-14
  3. Alekhine–R. Bruce, Plymouth 1938. Retrieved on 2009-04-14.