B12 Caro-Kann Defense, Advance Variation, Botvinnik-Carls Defense

If a player decides to defend the Caro Kann with 3…c5, the so called BotvinniKann, he should be prepared for an early Nf3 from the player in charge of the white army because many players are reluctant to move the Queen early in the opening of the game regardless of what the computer programs compute.

Emil Sutovsky (2651)

vs Jonathan S Speelman (2603)

North Sea Cup 16th 07/11/2001 Rd 6

B12 Caro-Kann, advance variation

1.e4 c6 2.d4 d5 3.e5 c5 4.Nf3 Nc6 5.Bb5 cxd4 6.Nxd4 Bd7 7.Nxc6 Bxc6 8.Bxc6+ bxc6 (All best according to SF)

9.O-O (The best move according to SF & Komodo is 9 c4, a move yet to be played in practice) e6 10.c4 Ne7 11.Qa4 Qd7 12.Nd2 Rb8 13.b3 Nc8 14.Rd1 Nb6 15.Qa5 dxc4 16.Bb2 cxb3 17.axb3 Nd5 18.Ne4 Be7 19.Rd3 Rb4 20.Nd6+ Bxd6 21.exd6 Re4 22.Rg3 e5 23.Rxg7 Kf8 24.Rg3 Re2 25.h3 Rg8 26.Qxa7 Qxa7 27.Rxa7 Rxg3 28.Ra8+ Kg7 29.d7 Nf4 30.Rg8+ 1-0

Nf3 has also been played after 4 dxc5 e6:

1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. Nf3 Bxc5 6. Bd3 Ne7 7. O-O Nbc6 8. Nbd2

(Although 8…Ng6 has almost invariably been played Stockfish gives 8…Nb4, a move yet to be attempted in practice, best)

Komodo prefers 1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. Nf3 Bxc5 6. Bd3 Ne7 7. O-O Nbc6 8. a3. The following game transposes into the 8 a3 line and follows the computer programs best play until 12…Kf7, when black should simply castle, a move that will become a theoretical novelty once played by a top GM.

Andrey Zhigalko (2576) vs Pavel Lomako (2385)

78th ch-BLR 2012 01/20/2012 Rd 9

B12 Caro-Kann, advance variation

1.e4 c6 2.d4 d5 3.e5 c5 4.dxc5 e6 5.Nf3 Bxc5 6.a3 Ne7 7.Bd3 Ng6 8.O-O Nc6 9.b4 Be7 10.Re1 f6 11.Bxg6+ hxg6 12.Qd3

Kf7 (12…0-0 Komodo) 13.Bb2 b6 14.c4 Bb7 15.Qe2 dxc4 16.exf6 Bxf6 17.Qxe6+ Kf8 18.Bc3 Rh5 19.Qxc4 Qd5 20.Qg4 Ne5 21.Bxe5 Bxe5 22.Rxe5 Rxe5 23.Nc3 Qe6 24.Nxe5 Qxe5 25.Qg3 Re8 26.Qxe5 Rxe5 27.Rd1 Ke7 28.h3 Rg5 29.Re1+ Kd6 30.Ne4+ Bxe4 31.Rxe4 a5 32.Kf1 Kd5 33.f3 Re5 34.bxa5 bxa5 35.Rg4 g5 36.Kf2 Kc5 37.a4 Kd5 38.Kg3 Rf5 39.Re4 Kc5 40.Kg4 Rd5 41.Kh5 Rd2 42.Rg4 Rd4 43.Rxg5+ Kb4 44.Rxg7 Kxa4 45.g4 Rf4 46.g5 Rxf3 47.h4 Kb3 48.Rb7+ Kc4 49.Ra7 Kb4 50.g6 Rg3 51.Kh6 a4 52.h5 a3 53.g7 1-0

The following game is the first game found in the database in which black played 3…c5. Chess Tempo gives Carl J M Carls his due.

Caro-Kann Defense, Advance Variation, Botvinnik-Carls Defense (B12)


(born Sep-16-1880, died Sep-11-1958, 77 years old) Germany
Carl Johan Margot Carls was born in Varel. Awarded the IM title in 1950, he was German champion in 1934.

A successful banker in Bremen with little time for tournament play or study, Carls specialized in the English Opening to help neutralize his relative lack of opening knowledge. Several variations bear his name or that of his city; for example, English, Bremen System, Keres Variation (A23) and English, Bremen System with …g6 (A24).

Karel Treybal vs Carl Johan Margot Carls

Breslau 1912

1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. Be3 Qc7 6. Qd4 Bd7 7. Nc3 Ne7 8. Bd3
Ng6 9. Nf3 Nc6 10. Nb5 Qb8 11. Qc3 Ncxe5 12. Bxg6 Nxf3+ 13. gxf3 hxg6 14. Qa5
Bxb5 15. Qxb5+ Kd8 16. O-O-O Qc7 17. c4 Rh5 18. cxd5 exd5 19. Rhe1 Qc6 20. Qc4
Be7 21. b4 Ke8 22. Qc3 Kf8 23. Bd4 Bf6 24. Bxf6 gxf6 25. Rd2 Kg7 26. f4 a5 27.
a3 axb4 28. axb4 Ra4 29. Rb2 Rxh2 30. Ree2 Qb5 31. Qd4 Ra1+ 32. Kd2 Rhh1 33.
Kc3 Rhc1+ 34. Rec2 Ra3+ 35. Rb3 Rxc2+ 36. Kxc2 Qe2+ 37. Kc3 Qf3+ 38. Qe3 d4+


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