Caro–Kann Defence
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| Moves | 1.e4 c6 | ||||||||||||||||||||||||||||||||||||||||||||
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| ECO | B10–B19 | ||||||||||||||||||||||||||||||||||||||||||||
| Origin | Bruederschaft (journal), 1886 | ||||||||||||||||||||||||||||||||||||||||||||
| Named after | Horatio Caro and Marcus Kann | ||||||||||||||||||||||||||||||||||||||||||||
| Parent | King's Pawn Game | ||||||||||||||||||||||||||||||||||||||||||||
The Caro–Kann Defence is a chess opening characterised by the moves:
The Caro–Kann is a common defense against the King's Pawn Opening and is classified as a "Semi-Open Game" like the Sicilian Defence and French Defence, although it is thought to be more solid and less dynamic than either of those openings. It often leads to good endgames for Black, who has the better pawn structure.
History
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The opening is named after the English player Horatio Caro and the Austrian player Marcus Kann who analysed it in 1886. Kann scored an impressive 17-move victory with the Caro–Kann Defence against German-British chess champion Jacques Mieses at the 4th German Chess Congress in Hamburg in May 1885:
1.e4 c6 2.d4 d5 3.e5 Bf5 4.Bd3 Bxd3 5.Qxd3 e6 6.f4 c5 7.c3 Nc6 8.Nf3 Qb6 9.0-0 Nh6 10.b3 cxd4 11.cxd4 Nf5 12.Bb2 Rc8 13.a3 Ncxd4 14.Nxd4 Bc5 15.Rd1 Nxd4 16.Bxd4 Bxd4+ 17.Qxd4 Rc1 0–1[1]
Main line: 2.d4 d5
After 2. d4 d5 the most common moves are 3.Nc3 (Classical and Modern variations), 3.Nd2 (usually transposing into 3.Nc3), 3.exd5 (Exchange Variation), and 3.e5 (Advance Variation).
3.Nc3 and 3.Nd2
3.Nc3 and 3.Nd2 usually transpose into each other after 3...dxe4 4.Nxe4. Since the 1970's, 3.Nd2 has increased in popularity to avoid the Gurgenidze Variation (3.Nc3 g6), however some players choose to allow it.
Classical Variation: 3...dxe4 4.Nxe4 Bf5
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The most common way of handling the Caro–Kann, the Classical Variation (often referred to as the Capablanca Variation after José Capablanca), is defined by the moves:
- 1.e4 c6 2.d4 d5 3.Nc3 (or 3.Nd2) dxe4 4.Nxe4 Bf5
This was long considered to represent 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 10.Qxd3
Although White's pawn on h5 looks ready to attack, it can prove to be a weakness in an endgame.[2]
Much of the Caro–Kann's reputation as a solid defence stems from this variation. Black makes very few compromises in pawn structure and plays a timely c6–c5 to contest the d4-square. Variations with Black castling queenside gave the Caro–Kann its reputation of being solid but somewhat boring. More popular recently are variations with Black castling kingside and even leaving his king in the centre. These variations can be sharp and dynamic.
Here is a brilliancy illustrating White's attacking chances when the players castle on opposite sides in the Classical Variation:
Lev Milman–Joseph Fang, Foxwoods Open, 2005[2]
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 (10...Qc7 avoids White's next) 11. Bf4 Bb4+ 12. c3 Be7 13. 0-0-0 Ngf6 14. Kb1 0-0 15. Ne5 c5?! (15...Qa5 is usual and better) 16. Qf3 Qb6? (necessary was 16...cxd4 17.Rxd4 Nxe5 18.Bxe5 Qc8 19.Rhd1 Rd8 20.Ne4 with a small White advantage) 17. Nxd7 Nxd7 18. d5 exd5 19. Nf5! Bf6 20. Rxd5 Qe6 21. Bxh6 Ne5 (21...gxh6 22.Rd6 Qe8 23.Rxf6 Nxf6 24.Qg3+ mates on g7) 22. Qe4 Nc6 23. Qf3 Ne5? (23...gxh6 24.Rd6 Qe5 25.Nxh6+ Kg7 26.Nf5+ Kh7 with an unclear position) 24. Qe4 Nc6 25. Qg4! Qxd5 (25...Ne5 26.Rxe5 Qxe5 27.Bxg7 Bxg7 28.h6 wins) 26. Bxg7 Qd3+ 27. Ka1 Ne5 28. Ne7+!! Kh7 29. Qg6+!! fxg6 30. hxg6+ Kxg7 31. Rh7# (White is down a queen, a rook, and a bishop!)[3][4]
Modern Variation: 3...dxe4 4.Nxe4 Nd7
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Another solid positional line, this variation is characterised by the moves:
- 1.e4 c6 2.d4 d5 3.Nc3 (or 3.Nd2) dxe4 4.Nxe4 Nd7
At one time named after the first world champion Wilhelm Steinitz, nowadays the variation is variously referred to as the Smyslov Variation after the seventh world champion Vasily Smyslov who played a number of notable games with it, the Karpov Variation, after the twelfth World Champion Anatoly Karpov, in whose repertoire it appeared quite often, or, most commonly, the Modern Variation. The short-term goal of 4...Nd7 is to ease development by the early exchange of a pair of Knights without compromising the structural integrity of his position. Play is similar to the Classical Variation except that Black has more freedom by delaying the development of his bishop, and is not forced to play it to the g6 square. However, this freedom comes at a cost as White enjoys added freedom in taking up space in the center, and often plays the aggressive 5.Ng5!? where Black's development is brought into question as well as the positional weakness of the f7-square. The famous last game of the Deep Blue versus Garry Kasparov rematch where Kasparov committed a known blunder and lost was played in this very line.
Specialist knowledge is a must to play this opening. Otherwise Black could fall prey to early attacks such as the quick mating trap for White 5.Qe2 and then 6.Nd6#.
3...dxe4 4.Nxe4 Nf6 5.Nxf6+
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The Bronstein–Larsen Variation and Korchnoi Variation both begin with the following moves:
- 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6!? 5.Nxf6+
Bronstein–Larsen Variation: 5...gxf6
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The Bronstein–Larsen Variation arises after:
- 5...gxf6!?
Black has voluntarily opted for an inferior pawn structure and a practical necessity of castling queenside, while gaining dynamic compensation in the form of the open g-file for the rook and unusually active play for the Caro–Kann. It is generally considered somewhat unsound, though world championship challenger David Bronstein and former world championship candidate Bent Larsen employed it with some success.
Korchnoi Variation: 5...exf6
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The Korchnoi Variation arises after:
- 5...exf6
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 regarded as sounder than 5...gxf6!? of the Bronstein–Larsen Variation and offers Black rapid development, though also ceding White the superior pawn structure and long-term prospects (Black has to be cautious that the d pawn is now a potential passed pawn in the endgame).
Gurgenidze Variation: 3.Nc3 g6
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The Gurgenidze Variation is 1.e4 c6 2.d4 d5 3.Nc3 g6. Black prepares to fianchetto the bishop on g7, creating pressure against White's d4 pawn. After 4.Nf3 Bg7 White usually plays 5.h3 to prevent the ...Bg4 pin. This variation, originated by Bukhuti Gurgenidze, led to a rise in the popularity of 3.Nd2 during the 1970s. After 3.Nd2, 3...g6 is met by 4.c3, when the fianchettoed bishop has little to do. 3.Nd2 will usually transpose into the classical variation after 3...dxe4 4.Nxe4.
Advance Variation: 3.e5
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The 3...Bf5 variation that follows with:
- 1.e4 c6 2.d4 d5 3.e5 Bf5
has gained popularity after having previously been widely regarded as inferior for many years, owing chiefly to the strategic demolition that Aron Nimzowitsch (playing as White) suffered at the hands of José Capablanca in one of their games at the New York 1927 tournament.[5]
The Advance Variation has since been revitalized by 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, or the less ambitious variation 4.Nf3 e6 5.Be2 c5 6.Be3, popularised by English Grandmaster Nigel Short and often seen in the 1990s.
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The 3...c5 variation that follows with:
- 1.e4 c6 2.d4 d5 3.e5 c5!?
is an important alternative and avoids the weight of theory associated with 3...Bf5. It was used by Mikhail Botvinnik in his 1961 match versus Mikhail Tal (though with a negative outcome for Botvinnik – two draws and a loss). The line was christened the "Arkell/Khenkin Variation" in the leading chess magazine New in Chess yearbook 42 in recognition of the work these two Grandmasters did and the success they were having with the variation. In comparison to the French Defence, Black lacks the tempo normally spent on ...e6. However, White can only exploit this by the weakening of his own central bind with 4. dxc5 when Black has good chances of regaining the pawn.
Exchange Variation: 3.exd5 cxd5
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The Exchange Variation is 1.e4 c6 2.d4 d5 3.exd5 cxd5.
Main line: 4.Bd3
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The "true" Exchange Variation begins with 4.Bd3 (to prevent ...Bf5 while still developing) Nc6 5.c3 Nf6 6.Bf4 Bg4 7.Qb3. This line is considered to offer equal chances, 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.
Panov–Botvinnik Attack: 4.c4
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The Panov–Botvinnik Attack begins with the move 4.c4. It is named after Vasily Panov and the world champion Mikhail Botvinnik. This system often leads to typical isolated queen's pawn (IQP) positions, with White obtaining rapid development, a grip on e5, and kingside attacking chances to compensate for the long-term structural weakness of the isolated d4-pawn. The major variation in this line is 4...Nf6 5.Nc3 e6 6.Nf3, when Black's main alternatives are 6...Bb4 (a position often transposing 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 by advancing the b-pawn to b5, or by exchanging the black knight on c6 after Bb5.
Two Knights Variation: 2.Nc3 d5 3.Nf3
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The Two Knights Variation 1.e4 c6 2.Nc3 d5 3.Nf3 (or 2.Nf3 d5 3.Nc3) was played by Bobby Fischer in his youth, but has since declined in popularity. White's intention is to benefit from rapid development as well as to retain options regarding 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. The Retreat Line 4...Bh5 is playable but Black must be careful. In Noteboom-Mindeno 1927 Black lost quickly after 5.exd5 cxd5 6.g4 Bg6 7.Ne5 a6? (7...Nc6 is necessary) 8.h4 d4 9.h5! dxc3 10.hxg6 cxd2+ 11.Qxd2 Qxd2+ 12.Bxd2 and Black must lose material.[6]
This 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![7][8]
Other lines
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 (B14, given above, with exd5 cxd5 d4) or Caro–Kann (B10, with the double capture on d5). Or Black may play 2...e5 (see 1.e4 c6 2.c4 e5). The 2.c4 line sometimes arises by transposition from the English Opening: 1.c4 c6 2.e4.
Fantasy or Tartakower Variation: 1.e4 c6 2.d4 d5 3.f3, which somewhat resembles the Blackmar–Diemer Gambit. 3...e6 is probably the most solid response, preparing to exploit the dark squares via ...c5, though 3....g6 has been tried by Yasser Seirawan. GM Lars Schandorff and GM Sam Shankland both prefer 3...dxe4 4.fxe4 e5 5.Nf3 Bg4 6.Bc4 Nd7 7.0-0 Ngf6 8.c3 Bd6 with play being sharp and double-edged. Interesting, though probably insufficient is 3...e5. This so-called 'Twisted Fantasy Variation' aims to exploit white's weaknesses on the a7-g1 diagonal. An idea which is similar to 3...Qb6, a variation championed by Baadur Jobava. Related to the Fantasy Variation are the gambits 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.f3, originated by Sir Stuart Milner-Barry, and 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Bc4 Nf6 5.f3 by (von Hennig).
Hillbilly Attack:[9][10] 1.e4 c6 2.Bc4?! This is most often played by weaker players who are unfamiliar with the Caro-Kann Defence. If 2...d5 3. exd5 cxd5, Black has simply gained a tempo on the bishop. Nevertheless GM Simon Williams has experimented with this move, following it up by gambiting the pawn with 2...d5 3.Bb3!?[11]
The Dunst Attack The Dunst Opening, 1.Nc3, has many transpositional possibilities, and one of them involves the Caro–Kann. After the moves 1.e4 c6 2.Nc3 d5 3.Qf3!?, White's position is sound according to Graham Burgess.[12]
ECO codes
The Encyclopaedia of Chess Openings (ECO) has ten codes for the Caro–Kann Defence, B10 through B19:
- B10 - Miscellaneous 2nd moves by White
- Hillbilly Attack: 1.e4 c6 2.Bc4
- Modern; English Variation, Accelerated Panov: 1.e4 c6 2.c4
- Breyer Variation: 1.e4 c6 2.d3
- Massachusetts Defense: 1.e4 c6 2.d4 f5
- Masi Variation: 1.e4 c6 2.d4 Nf6
- Scorpion-Horus Gambit: 1.e4 c6 2.Nc3 d5 3.d3 dxe4 4.Bg5
- Spielmann/Goldman Variation: 1.e4 c6 2.Nc3 d5 3.Qf3
- Two Knights Variation (without 3...Bg4): 1.e4 c6 2.Nf3 d5 3.Nc3
- Apocalypse Attack: 1.e4 c6 2.Nf3 d5 3.exd5 cxd5 4.Ne5
- B11 - Two Knights Variation with 3...Bg4
- B12 - Miscellaneous lines with 2.d4
- Landau Gambit: 1.e4 c6 2.d4 d5 3.Bd3 Nf6 4.e5 Nfd7 6.e6
- Mieses Gambit: 1.e4 c6 2.d4 d5 3.Be3
- Diemer–Duhm Gambit: 1.e4 c6 2.d4 d5 3.c4
- Advance Variation: 1.e4 c6 2.d4 d5 3.e5
- Prins Attack: 1.e4 c6 2.d4 d5 3.e5 Bf5 4.b4
- Bayonet Variation: 1.e4 c6 2.d4 d5 3.e5 Bf5 4.g4
- Tal Variation: 1.e4 c6 2.d4 d5 3.e5 Bf5 4.h4
- Van der Wiel Attack: 1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3
- Dreyev Defense: 1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 Qb6
- Bronstein Variation: 1.e4 c6 2.d4 d5 3.e5 Bf5 4.Ne2
- Short Variation: 1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2
- Botvinnik–Carls Defense: 1.e4 c6 2.d4 d5 3.e5 c5
- Maroczy Variation: 1.e4 c6 2.d4 d5 3.f3
- Fantasy/Lilienfisch Variation: 1.e4 c6 2.d4 d5 3.f3
- Maroczy Gambit: 1.e4 c6 2.d4 d5 3.f3 dxe4 4.fxe4 e5 5.Nf3 exd4 6.Bc4
- Modern Variation: 1.e4 c6 2.d4 d5 3.Nd2
- New Caro–Kann 1.e4 c6 2.d4 d5 3.Nd2 g6
- Edinburgh Variation: 1.e4 c6 2.d4 d5 3.Nd2 Qb6
- Ulysses Gambit: 1.e4 c6 2.d4 d5 3.Nf3 dxe4 4.Ng5
- De Bruycker Defense: 1.e4 c6 2.d4 Na6
- Hector Gambit: 1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Ng5
- B13 - Exchange Variation
- Rubinstein Variation: 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 Nf6 6.Bf4
- Panov–Botvinnik: 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4
- Panov–Botvinnik, Gedult-Gunderam Attack: 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.c5
- B14 - Panov-Botvinnik Attack with 5...e6
- Carlsbad Line: 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 e6
- Czerniak Line: 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 Qa5
- Reifir–Spielmann Line: 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 Qb6
- B15 - 3.Nc3, miscellaneous lines
- Gurgenidze Variation: 1.e4 c6 2.d4 d5 3.Nc3 b5
- Von Hennig Gambit: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Bc4
- Milner–Barry Gambit, Rasa-Studier Gambit: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.f3
- Knight Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6
- Tarrasch/Alekhine Gambit: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Bd3
- Tartakower Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6
- Forgacs Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4
- Gurgenidze System: 1.e4 c6 2.d4 d5 3.Nc3 g6
- Gurgenidze Variation: 1.e4 c6 2.d4 d5 3.Nc3 g6 4.e5 Bg7 5.f4 h5
- Campomanes Attack: 1.e4 c6 2.d4 d5 3.Nc3 Nf6
- B16 - Bronstein-Larsen Variation
- Finnish Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 h6
- Bronstein–Larsen Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6
- Korchnoi Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6
- B17 - Steinitz Variation
- Karpov Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7
- Smyslov Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6
- Tiviakov–Fischer Attack: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Nxf6+ Nxf6
- Kasparov Attack: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Ng3
- Ivanchuk Defense: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Ng5 Ndf6
- B18 - Classical Variation
- Classical Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5
- Flohr Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nh3
- B19 - Classical Variation with 7...Nd7
- 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
See also
References
- ↑ Jacques Mieses vs Marcus Kann
- ↑ Schiller, p. 33
- ↑ Notes based on Milman's much more extensive notes in Chess Life, July 2005, pp. 11–12.
- ↑ Milman-Fang, 7th Foxwoods Open 2005. ChessGames.com. Retrieved on 2009-10-30.
- ↑
- ↑ Noteboom-Mindeno 1927
- ↑ Lasker-Radsheer, simultaneous exhibition 1908. ChessGames.com. Retrieved on 2009-04-14.
- ↑ Alekhine-R. Bruce, Plymouth 1938. ChessGames.com. Retrieved on 2009-04-14.
- ↑ Watson, John (2015). Taming Wild Chess Openings: How to Deal with the Good, the Bad and the Ugly over the Chess Board. New In Chess. p. 148. ISBN 978-90-5691-571-1. Extract of page 148
- ↑ Schiller, Eric (1998). Unorthodox Chess Openings (illustrated ed.). Cardoza. p. 82. ISBN 978-0-940685-73-4.
- ↑ Simon Kim Williams vs Gawain Jones, 4NCL 2011 at chessgames.com
- ↑ The Dunst: Attacking the Caro-Kann with an early Queen sortie
Bibliography
- Schiller, Eric (2003). Complete Defense to King Pawn Openings (2nd ed.). Cardoza. ISBN 978-1-58042-109-6.
Further reading
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The Wikibook Chess Opening Theory has a page on the topic of: Caro-Kann Defence |
- Houska, Jovanka (2007). Play the Caro-Kann: A Complete Chess Opening Repertoire Against 1 e4. London: Everyman Chess. ISBN 1-85744-434-5.
- Wells, Peter (2007). Grandmaster Secrets – The Caro-Kann. London: Gambit Publications. ISBN 978-1-904600-61-9.
- The ABC of the Caro Kann, Andrew Martin, ChessBase Publications, 2007, Fritz Trainer DVD.
- Karpov, Anatoly (2006). Caro-Kann Defence: Advance Variation and Gambit System. London: Anova Books. ISBN 0-7134-9010-1.
- Gallagher, Joe (2002). Starting Out: the Caro-Kann. Everyman Chess. ISBN 1-85744-303-9.
- Silman, Jeremy (1990). Dynamic Karo Kann. Summit Pub. ISBN 978-0-945806-02-8.
- Kasparov, Garry; Shakarov, Aleksander (1984). Caro-Kann: Classical 4.Bf5. Batsford. ISBN 0-7134-4237-9.
- Keene, Raymond; Mednis, Edmar; Soltis, Andy (2004). Understanding The Caro-Kann Defense. Hardinge Simpole Limited. ISBN 978-1-84382-134-2.