Is there a name for this opening?

[Ajedrecista]

Hello Dann:

All the books I have searched give the following order of moves:

[pgn]1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6[/pgn]

So Nc3 before g4. They call it:

· 'The 4. ... e6 5. g4 Bg6 6. Nge2 Variation' (Beating the Caro-Kann. Vassilios Kotronias. 1994).
· 'Advance Variation: The Sharp 4. Nc3, Main Line 4. ...e6 5. g4 Bg6 6. Nge2 c5' (Starting Out: the Caro-Kann. Joe Gallagher. 2002).
· 'Advance Variation: The Sharp 4. Nc3, Main Line: Alternatives to 6. ... c5' (Starting Out: the Caro-Kann. Joe Gallagher. 2002).

Which agree with a tabulated list of ECO codes that I have got (which I think they are displayed in Arena GUI):

Code: Select all

*Version=1.17
*Author= Christopher Conkie, E-mail: *******@***********.com
[...]
{B12   Caro-Kann: Advance, Main Line, 1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 e6 5.g4}1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 e6 5.g4
{B12   Caro-Kann: Advance, Main Line, 6.Nge2}1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 e6 5.g4 Bg6 6.Nge2
{B12   Caro-Kann: Advance, Main Line, 6.Nge2 c5}1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 e6 5.g4 Bg6 6.Nge2 c5
[...]

------------

Of course g4 can be played at fourth move:

Code: Select all

*Version=1.17
*Author= Christopher Conkie, E-mail: *******@***********.com
[...]
{B12   Caro-Kann: Advance, Bayonet Variation}1.e4 c6 2.d4 d5 3.e5 Bf5 4.g4
[...]

Which was cited by Alan before as 'Bayonet Variation'.

------------

The Encyclopedia of Chess Openings, Volume B (1975) gives the two posibilities (g4 and Nc3 at the fourth move):

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Be4
1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6

But black moving ... e6 is in the order 4. Nc3 e6 5. g4.

Summarizing: 'Caro-Kann Defence, Advance Variation, Main Line 4. ... e6 5. g4 Bg6'.

Without entering in more lines, the principal variation given by ECO, Volume B (1975) is:

[pgn]1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4 cxd4 8. Qxd4 Nc6 9. Qa4 h5 10. Nf4 Bh7 11. Nxh5 a6[/pgn]

Finishing with the comment: 'The position is unclear'. SF 11 does not like 8. Qxd4 and prefers 8. Nxd4. SF is indeed unclear about the supposed best move 12. Bg5, waving from -0.59 (d22/39) to +0.25 (d20/31). Analysis with Multi-PV = 7 at depth 24:

Code: Select all

FEN: r2qkbnr/1p3ppb/p1n1p3/3pP2N/Q5PP/2N5/PPP2P2/R1B1KB1R w KQkq - 0 12 

 24/42	12:02	 273.134.004	378.251	-1,73	Qa4b3 Qd8c7 Bc1g5 Ng8e7 Ra1d1 OOO Rd1d2 Nc6xe5 Bf1e2 d5d4 f2f4 Ne5c6 Nc3a4 b7b5 Na4c5 Rd8d5 Nc5xa6 Qc7b6 f4f5 Qb6xa6 f5f6 Bh7e4 Rh1h3 d4d3 f6xe7 Bf8xe7 c2xd3 Be4g2 Rh3g3 Be7xg5
 24/37	12:02	 273.134.004	378.251	-1,69	Rh1h3 b7b5 Qa4f4 Ng8e7 Bf1d3 Ne7g6 Qf4g5 Ng6xe5 Nh5xg7+ Ke8d7 Bd3xh7 Rh8xh7 Ng7f5 Qd8xg5 Bc1xg5 f7f6 Bg5f4 e6xf5 g4xf5 Rh7xh4 Rh3xh4 Ne5f3+ Ke1f1 Nf3xh4 Nc3xd5 Ra8d8 Ra1e1 Kd7c8 Nd5xf6 Nh4xf5
 24/47	12:02	 273.134.004	378.251	-1,35	Bf1d3 Bh7xd3 c2xd3 g7g6 Nh5f6+ Ng8xf6 Bc1g5 Bf8e7 e5xf6 Be7xf6 OOO Bf6xg5+ h4xg5 Qd8xg5+ f2f4 Qg5f6 g4g5 Qf6g7 Kc1b1 OOO Nc3e2 Kc8b8 Qa4a3 e6e5 Qa3c3 Rh8e8 Qc3d2 Re8e7 Rd1c1 e5e4 d3xe4 d5xe4 Qd2e3 f7f5 g5xf6/ep Qg7xf6 Kb1a1 Nc6d4 Ne2xd4 Qf6xd4 Qe3xd4
 24/42	12:02	 273.134.004	378.251	-1,30	Bc1e3 Bh7g6 Bf1g2 b7b5 Qa4f4 Ra8c8 Qf4g5 Nc6b4 Qg5xd8+ Rc8xd8 OOO Nb4xc2 Be3b6 Rd8c8 Nh5f4 Bg6h7 Nf4d3 Bh7xd3 Rd1xd3 Nc2b4 Rd3g3 Nb4xa2+ Kc1b1 Na2b4 f2f4 Rc8c4 Nc3e2 Bf8e7 g4g5 Nb4c6 g5g6 Rh8xh4 g6xf7+ Ke8xf7
 24/40	12:02	 273.134.004	378.251	-1,14	Bc1d2 b7b5 Qa4f4 Ng8e7 Qf4g3 Nc6b4 Ra1c1 Ne7c6 Bf1g2 Nb4xc2+ Ke1d1 Nc6d4 Nc3e2 Ra8c8 Ne2xd4 Nc2xd4 Rc1xc8 Qd8xc8 Qg3c3 Nd4c6 f2f4 Qc8c7 a2a3 Bh7g6 Bg2f3 Bg6xh5 g4xh5 b5b4 a3xb4 Bf8xb4 Qc3d3 Bb4xd2 Kd1xd2
 24/41	12:02	 273.134.004	378.251	-0,84	Bf1g2 b7b5 Qa4f4 Ra8c8 Qf4g3 Nc6d4 Bc1g5 Qd8b6 Ra1c1 b5b4 Nc3e2 Nd4xe2 Ke1xe2 Bh7xc2 Ke2f1 Qb6d4 b2b3 Bc2d3+ Kf1g1 Rc8xc1+ Bg5xc1 Bd3e2 Bc1f4 Qd4d3 Bf4e3 Qd3c2 Nh5f4 Be2b5
 24/57	12:02	 273.134.004	378.251	-0,50	Bc1g5 b7b5 Qa4f4 Qd8c7 OOO b5b4 Nc3xd5 e6xd5 e5e6 Qc7xf4+ Nh5xf4 Bh7e4 Nf4xd5 Be4xd5 e6xf7+ Bd5xf7 Bf1g2 Ng8e7 Bg5xe7 Ke8xe7 Bg2xc6 Ra8a7 Rh1e1+ Ke7f6 g4g5+ Kf6f5 Rd1d8 b4b3 Bc6e4+ Kf5f4 a2xb3 Bf8b4 Rd8xh8 Bb4xe1 g5g6 Bf7e6 f2f3 Be1f2 Rh8e8 Be6h3 Re8f8+ Kf4g3 h4h5 Ra7d7 Kc1b1 Bf2e3 Rf8f7 Bh3e6 Rf7xd7 Be6xd7 Be4d5 Be3h6 Bd5b7

Regards from Spain.

Ajedrecista.

[supersharp77]

There are a zillion games that contain this position:
[d]rn1qkbnr/pp3ppp/2p1p1b1/3pP3/3P2P1/2N5/PPP2P1P/R1BQKBNR w KQkq -
I guess that it is so popular it must have a name (and probably it is simply between named openings).
So I was wondering, is there a recognized name for this position?
(He looks lonely in the database, since all of his neighbors have names and he does not.)

My take is........ B12 Caro-Kann Defense: Advance Variation, Van der Wiel Attack
A Caro Kann attacl line Popularized by the Great Shirov himself....white pushes pawns to attack blacks bishop and hemmed in Kingside...("a double edged attack line with unclear outcomes")......

[Dann Corbit]

It is a position that both SF and LC0 agree favors white.

[Norm Pollock]

This is the closest that I found in scid.eco, which is the database SCID uses for ECO. The only difference is that this position has one more White move ( Nge2 ).

[d]rn1qkbnr/pp3ppp/2p1p1b1/3pP3/3P2P1/2N5/PPP1NP1P/R1BQKB1R b KQkq - eco B12w Caro-Kann: Advance, Main Line, 6.Nge2;

compared to the original position

[d]rn1qkbnr/pp3ppp/2p1p1b1/3pP3/3P2P1/2N5/PPP2P1P/R1BQKBNR w KQkq -