Rybka Caro-Kann Novelty

AdminX · Post by **AdminX** » Thu Apr 23, 2009 6:23 pm

I like to play off beat openings, the other day I came across a off beat caro-kann line that I found interesting. The opening moves were as follows:

1. e4 c6
2. Nc3 d5
3. Qf3

[d]rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2Q2/PPPP1PPP/R1B1KBNR b KQkq - 0 3

Now I like messy games so the line that interest me most here was:

3. ... d4
4. Bc4 Nf6
5. e5

[d]rnbqkb1r/pp2pppp/2p2n2/4P3/2Bp4/2N2Q2/PPPP1PPP/R1B1K1NR b KQkq - 0 5

So far, so book. The earliest game I found with this position was Lipnitsky - Goldberg played in 1951. While the latest game in my database was Smirnov - Fyodorova played in 2008. Now as we all know there is always room for improvement, so with the help of Rybka 3 I found (Okay Rybka found.

) the following Novelty:

5. ... Nbd7!

[d]r1bqkb1r/pp1npppp/2p2n2/4P3/2Bp4/2N2Q2/PPPP1PPP/R1B1K1NR w KQkq - 0 6

Black simply developes and ignores the current threats to exchange the knignts. At first 6.e6? looked intertesting for white here to me, but it does not work. Play continues:

6. exf6 Ne5!

[d]r1bqkb1r/pp2pppp/2p2P2/4n3/2Bp4/2N2Q2/PPPP1PPP/R1B1K1NR w KQkq - 0 7

Now we see the key reason for black previous move. Black's c8 Bishop is now active and whites Queen, Bishop, and Knight are all under attack. There are many moves that white can play but Rybka gives the following as best:

7. Qg3 gxf6!

[d]r1bqkb1r/pp2pp1p/2p2p2/4n3/2Bp4/2N3Q1/PPPP1PPP/R1B1K1NR w KQkq - 0 8

Black can do this because he still has two of whites pieces under attack. Clearly he should, so the only question was which way to take the f6 pawn. Should he recapture with the e or g pawn? At the end of the day both are sound.

8. Bb3 dxc3

[d]r1bqkb1r/pp2pp1p/2p2p2/4n3/8/1Bp3Q1/PPPP1PPP/R1B1K1NR w KQkq - 0 9

So we finally reach a position with some interesting imbalances due to pawn stucture, but still have balanced play for both sides. What do your chess engines think?

AdminX · Post by **AdminX** » Thu Apr 23, 2009 7:41 pm

[d]rnbqkb1r/pp2pppp/2p2n2/4P3/2Bp4/2N2Q2/PPPP1PPP/R1B1K1NR b KQkq - 0 5

Using other engines I see it appears that allot of other engines like 5. ... Nbd7 as well. So I guess it is more of a computer chess novelty than a Rybka novelty.

Also had more time to look at the position after 6. ... Ne5!

[d]r1bqkb1r/pp2pppp/2p2P2/4n3/2Bp4/2N2Q2/PPPP1PPP/R1B1K1NR w KQkq - 0 3

I saw the interesting 7. Bxf7!

[d]r1bqkb1r/pp2pBpp/2p2P2/4n3/3p4/2N2Q2/PPPP1PPP/R1B1K1NR b KQkq - 0 3

But black seems okay after:

7. ... Kxf7
8. Qh5 g6
9. Qxe5 exf6
10. Qe2 dxc3

[d]r1bq1b1r/pp3k1p/2p2pp1/8/8/2p5/PPPPQPPP/R1B1K1NR w KQ - 0 7

Marek Soszynski · Post by **Marek Soszynski** » Sat Apr 25, 2009 12:25 am

[d] r1bqkb1r/pp2pp1p/2p2p2/4n3/8/1Bp3Q1/PPPP1PPP/R1B1K1NR w KQkq - 0 9

From this position here is a little tourney on my old dual @ 10+2:

Code: Select all

                                1       2       3       4       5       6       7       
1       Rybka 3 Dynamic w32     **      1½      ½1      10      ½1      11      ½1      9.0/12
2       Rybka 3 Human w32       0½      **      01      01      1½      ½½      11      7.0/12
3       Rybka 3 w32             ½0      10      **      10      ½½      10      11      6.5/12
4       HIARCS 12.1MP           01      10      01      **      1½      ½0      ½0      5.5/12
5       Deep Shredder 11        ½0      0½      ½½      0½      **      1½      1½      5.5/12
6       Bright 0.4a             00      ½½      01      ½1      0½      **      10      5.0/12
7       Glaurung 2.2            ½0      00      00      ½1      0½      01      **      3.5/12

1-0 11 Games
½-½ 14 Games
0-1 17 Games

Dann Corbit · Post by **Dann Corbit** » Sat Apr 25, 2009 1:06 am

1964 was before computers, so I guess we cannot give computers all the credit for this one.

Code: Select all

[Event "Corr E-02ch"]
[Site ""]
[Date "1964.??.??"]
[Round "?"]
[White "Ekebjarg Ove (DEN)"]
[Black "Sevecek, Rudolf"]
[Result "1/2-1/2"]
[WhiteElo "2618"]
[BlackElo "2600"]
[ECO "B10r"]
[Annotator ""]
[Source ""]
[Remark ""]

1.Nc3 d5 2.e4 c6 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Qg3 exf6 8.Bb3 dxc3 9.Qxc3 Qb6 10.Ne2 Bd6 11.Qe3 Qxe3 12.fxe3 a5 13.a4 O-O 14.O-O Re8 15.h3 b6 16.d3 Ba6 17.Bd2 Rad8 18.Nc3 Nd7 19.Rf5 Nc5 20.Ba2 Bc7 21.g4 h6 22.Rf3 Bc8 23.Be1 Re7 24.Bg3 Bxg3 25.Rxg3 f5 26.gxf5 Bxf5 27.Rf1 Be6 28.Bxe6 Rxe6 29.Rf4 g5 30.Rf2 Kg7 31.e4 Rf6 32.b3 Ne6 33.Ne2 c5 34.Rxf6 Kxf6 35.Rf3+ Ke7 36.Nc3 Nf4 37.Kf2 Ke6 38.Ne2 Ng6 39.Ng3 Nh4 40.Re3 Ng6 41.Nf5 h5 42.Rf3 Nf4 43.Ne3 h4 44.Nf5 f6 45.Ke3 Ke5 46.Nh6 Rd7 47.Kd2 Ke6 48.Nf5 Ng6 49.Ne3 Nf4 50.Nf5 Rb7 51.Ne3 b5 52.axb5 Rxb5 53.Nf5 Ke5 54.Ne3 Ke6 55.Nf5 Rb7 56.Ne3 Ra7 57.Nf5 Ke5 58.Ke3 Ra8 59.Nxh4 Rh8 60.Nf5 Rxh3 61.Rxh3 Nxh3 62.Ne7 Kd6 63.Nf5+ Ke6 1/2-1/2

The full set of games featuring this move are:

Code: Select all

[Event "Corr E-02ch"]
[Site "?"]
[Date "1964.??.??"]
[Round "?"]
[White "Ekebjarg Ove (DEN)"]
[Black "Sevecek, Rudolf"]
[Result "1/2-1/2"]
[WhiteElo "2618"]
[BlackElo "2600"]
[ECO "B10r"]

1.Nc3 d5 2.e4 c6 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Qg3 exf6 8.Bb3 
dxc3 9.Qxc3 Qb6 10.Ne2 Bd6 11.Qe3 Qxe3 12.fxe3 a5 13.a4 O-O 14.O-O Re8 15.
h3 b6 16.d3 Ba6 17.Bd2 Rad8 18.Nc3 Nd7 19.Rf5 Nc5 20.Ba2 Bc7 21.g4 h6 22.
Rf3 Bc8 23.Be1 Re7 24.Bg3 Bxg3 25.Rxg3 f5 26.gxf5 Bxf5 27.Rf1 Be6 28.Bxe6 
Rxe6 29.Rf4 g5 30.Rf2 Kg7 31.e4 Rf6 32.b3 Ne6 33.Ne2 c5 34.Rxf6 Kxf6 35.
Rf3+ Ke7 36.Nc3 Nf4 37.Kf2 Ke6 38.Ne2 Ng6 39.Ng3 Nh4 40.Re3 Ng6 41.Nf5 h5 
42.Rf3 Nf4 43.Ne3 h4 44.Nf5 f6 45.Ke3 Ke5 46.Nh6 Rd7 47.Kd2 Ke6 48.Nf5 Ng6
49.Ne3 Nf4 50.Nf5 Rb7 51.Ne3 b5 52.axb5 Rxb5 53.Nf5 Ke5 54.Ne3 Ke6 55.Nf5 
Rb7 56.Ne3 Ra7 57.Nf5 Ke5 58.Ke3 Ra8 59.Nxh4 Rh8 60.Nf5 Rxh3 61.Rxh3 Nxh3 
62.Ne7 Kd6 63.Nf5+ Ke6 1/2-1/2

[Event "?"]
[Site "?"]
[Date "1999.??.??"]
[Round "?"]
[White "Shim Ng Min Francis (MRI)"]
[Black "Lalonde Michel (CAN)"]
[Result "1/2-1/2"]
[ECO "B10r"]

1.e4 c6 2.Nc3 d5 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Qg3 exf6 8.Bb3 
dxc3 9.dxc3 a5 10.a4 Bg4 11.Be3 h5 12.h3 h4 13.Qf4 g5 14.Qe4 Bh5 15.Bxg5 
fxg5 16.Qxe5+ Qe7 17.Qxe7+ Bxe7 18.Bc4 O-O-O 19.Ne2 Bc5 20.O-O Bg6 21.Nd4 
Bxd4 22.cxd4 Rxd4 23.Bb3 Rd2 24.Rac1 Re8 25.Rfd1 Ree2 26.Rxd2 Rxd2 27.Kf1 
Kc7 28.Ke1 Rd8 1/2-1/2

[Event "C1.1998.0.00142"]
[Site "?"]
[Date "1998.08.30"]
[Round "1"]
[White "Figlio Gino Franco (PER)"]
[Black "Ginther Ron"]
[Result "1-0"]
[WhiteElo "2367"]
[ECO "B10r"]

1.e4 c6 2.Nc3 d5 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Bxf7+ Nxf7 8.
fxg7 Bxg7 9.Ne4 d3 10.c3 O-O 11.Qe3 Qd5 12.Nf3 Bg4 13.Nd4 Bh6 14.Qxd3 c5 
15.Nxc5 Qxc5 16.O-O Bf4 17.h3 Qh5 18.Re1 e5 19.Ne2 Bxe2 20.Qxe2 Qxe2 21.
Rxe2 Rad8 22.d4 Bxc1 23.Rxc1 exd4 24.cxd4 Rxd4 25.Rc7 Rb4 26.Ree7 Nd8 27.
Rg7+ 1-0

[Event "Ed7 Division A"]
[Site "?"]
[Date "2008.01.17"]
[Round "1"]
[White "Movei 0.08.438"]
[Black "Delfi 5.20"]
[Result "0-1"]
[ECO "B10r"]

1.e4 c6 2.Nc3 d5 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Qe2 Nxc4 8.fxg7
Bxg7 9.Qxc4 Be6 10.Qb4 dxc3 11.dxc3 Qb6 12.Qxb6 axb6 13.Be3 c5 14.a3 O-O-O
15.Ne2 Rd7 16.O-O Bf5 17.Rac1 Rhd8 18.Rfe1 Kb8 19.Ng3 Bg6 20.Bf4+ Ka7 21.
h4 h5 22.f3 Ka6 23.a4 Ka5 24.Ra1 Bf6 25.Bg5 Bxg5 26.hxg5 Bxc2 27.Nxh5 Rd1 
28.Rexd1 Rxd1+ 29.Rxd1 Bxd1 30.Nf4 Kxa4 31.Nd3 Bb3 32.Kf2 Bc4 33.Ne5 Be6 
34.g6 fxg6 35.Nxg6 Kb3 36.Nf4 Bc4 37.Ke3 Kxb2 38.Kd2 b5 39.g4 b4 40.cxb4 
cxb4 41.Ng2 b3 42.Ne3 b5 43.g5 Bf7 44.Nd1+ Ka3 45.Kc1 Bh5 46.Nb2 Bxf3 47.
g6 Bd5 48.g7 e5 49.Nd1 e4 50.Nc3 b2+ 51.Kd2 Bg8 0-1

[Event "Engine Games 030 Min + X Sec"]
[Site "Internet INT"]
[Date "2004.??.??"]
[Round "?"]
[White "Phalanx 22"]
[Black "Patriot 0.1.7 light"]
[Result "0-1"]
[ECO "B10r"]
[Variation "Caro-Kann: Goldman/Spielmann"]

1.e4 c6 2.Nc3 d5 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Qg3 exf6 8.Bb3 
dxc3 9.bxc3 a5 10.d4 Ng6 11.Qe3+ Be7 12.Nf3 Bf5 13.O-O O-O 14.Qe2 Re8 15.
Be3 Ba3 16.Bc4 Qe7 17.Rab1 b5 18.Bd3 Nf4 19.Qd2 Nxd3 20.cxd3 Be6 21.Qe2 
Bd6 22.Rfe1 b4 23.c4 Rac8 24.Rb2 h6 25.Rbb1 Bg4 26.h3 Bh5 27.Qd1 Qd7 28.
Rc1 Bc7 29.Kh1 Re7 30.g4 Bg6 31.Nh4 Qd6 32.f4 Rce8 33.Qd2 f5 34.gxf5 Qf6 
35.Nxg6 fxg6 36.Kg2 Qxf5 37.Ra1 Kh7 38.Bf2 Bxf4 39.Rxe7 Bxd2 40.Rxe8 Qxd3 
41.Re5 a4 42.c5 b3 43.axb3 axb3 44.Ra3 Qc4 45.Ra1 b2 46.Rb1 Bc1 47.d5 cxd5
48.c6 Qxc6 49.Kg1 Qc4 50.h4 Qg4+ 51.Kf1 Qh3+ 0-1

[Event "Engine Games 003 Min + X Sec"]
[Site "Internet INT"]
[Date "2002.06.22"]
[Round "?"]
[White "Fritz 7"]
[Black "Fritz 7"]
[Result "0-1"]
[ECO "B10r"]
[Variation "Caro-Kann: Goldman/Spielmann"]

1.Nc3 d5 2.e4 c6 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Bxf7+ Kxf7 8.
Qh5+ Ng6 9.fxg7 Bxg7 10.Ne4 d3 11.Qf3+ Kg8 12.Qe3 dxc2 13.Ne2 Bf5 14.O-O 
Qd5 15.d3 Rd8 16.Qxa7 Qxd3 17.N4g3 Bg4 18.f3 Bc8 19.Qb6 Kf7 20.a4 h5 21.
Ra3 Qc4 22.b3 Qd3 23.b4 Qd1 24.Qe3 h4 25.Ne4 h3 26.g3 Rh5 27.a5 Be6 28.Kf2
Bh6 29.Qc3 Ne5 30.Bxh6 Bc4 31.Qe3 Rf5 32.Bf4 Nd3+ 33.Rxd3 Rxd3 34.Ng5+ 
Rxg5 35.Qe4 Rd4 36.Qh7+ Ke8 37.Qh8+ Rg8 38.Qh5+ Kd8 39.Qe5 Rxf4 40.Rxd1+ 
cxd1=Q 41.Nxf4 Qd2+ 42.Ne2 Bxe2 43.Qxe2 Qd4+ 44.Qe3 Qb2+ 45.Qe2 Rxg3 46.
Qxb2 Rg2+ 47.Ke3 Rxb2 48.Kf4 Rxb4+ 49.Kg3 c5 50.a6 bxa6 51.f4 c4 52.Kf3 
Rb2 53.Ke3 Rxh2 54.Kd4 Rf2 55.Kxc4 h2 56.Kc5 h1=Q 57.f5 Rxf5+ 58.Kb4 Rf4+ 
59.Kb3 Qh3+ 60.Kc2 Rf2+ 61.Kb1 Qh1# 0-1

[Event "frei"]
[Site "www.remoteschach.de"]
[Date "2005.05.22"]
[Round "?"]
[White "Krauß, Heiko"]
[Black "Dammer, Axel"]
[Result "1/2-1/2"]
[WhiteElo "2206"]
[BlackElo "2074"]
[ECO "B10r"]
[Variation "Caro-Kann: Goldman/Spielmann"]

1.e4 c6 2.Nc3 d5 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Bxf7+ Nxf7 8.
fxg7 Bxg7 9.Nce2 e5 10.d3 Qb6 11.Nh3 Be6 12.Ng5 Nxg5 13.Bxg5 Qxb2 14.O-O 
Qa3 15.Rab1 Qf8 16.Qxf8+ Rxf8 17.Nxd4 Bxa2 18.Rxb7 Rf7 19.Rxf7 Bxf7 20.
Nxc6 Kd7 21.Na5 Rc8 22.c4 Rb8 23.Re1 Bg6 24.f4 Re8 25.Nb3 exf4 26.Kf2 Rxe1
27.Kxe1 Bc3+ 28.Ke2 Bh5+ 29.Kf2 Bd1 30.Nc5+ Kc6 31.Ne6 a5 32.Bxf4 a4 33.
Bc1 Bg4 34.Ng5 Kc5 35.Ke3 Kb4 36.Ne4 Bg7 37.Bd2+ Kb3 38.Nc5+ Kc2 39.Bb4 
Bf8 40.h3 Bf5 41.d4 Bxc5 42.Bxc5 Kc3 43.g4 Be6 44.Kf4 Kxc4 45.Ke5 Bd7 46.
Bf8 Kd3 47.d5 Ke3 48.Kf6 Kf4 49.Kg7 Ke4 50.d6 a3 51.Kxh7 Kd5 52.Kg6 a2 53.
Bg7 Kxd6 54.Kg5 Ke7 55.h4 Kf7 56.Bc3 Kg8 57.h5 Kh7 58.Kh4 Bb5 59.g5 
1/2-1/2

[Event "HCL-M291"]
[Site "www.playchess.de"]
[Date "2003.01.16"]
[Round "10"]
[White "gypla"]
[Black "solya"]
[Result "1/2-1/2"]
[ECO "B10r"]
[Variation "Caro-Kann: Goldman/Spielmann"]

1.e4 c6 2.Nc3 d5 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Bxf7+ Nxf7 8.
fxg7 Bxg7 9.Ne4 d3 10.Qxd3 1/2-1/2

[Event "CL4-1999.34"]
[Site "IECC"]
[Date "1999.08.30"]
[Round "?"]
[White "Shim Ng Min, Francis"]
[Black "Lalonde, Michel"]
[Result "1/2-1/2"]
[WhiteElo "1607"]
[BlackElo "1730"]
[ECO "B10r"]
[Variation "Caro-Kann: Goldman/Spielmann"]

1.e4 c6 2.Nc3 d5 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Qg3 exf6 8.Bb3 
dxc3 9.dxc3 a5 10.a4 Bg4 11.Be3 h5 12.h3 h4 13.Qf4 g5 14.Qe4 Bh5 15.Bxg5 
fxg5 16.Qxe5+ Qe7 17.Qxe7+ Bxe7 18.Bc4 O-O-O 19.Ne2 Bc5 20.O-O Bg6 21.Nd4 
Bxd4 22.cxd4 Rxd4 23.Bb3 Rd2 24.Rac1 Re8 25.Rfd1 Ree2 26.Rxd2 Rxd2 27.Kf1 
Kc7 28.Ke1 Rd8 1/2-1/2

[Event "C1.1998.0.00142"]
[Site "IECG"]
[Date "1998.07.29"]
[Round "?"]
[White "Figlio, Gino"]
[Black "Ginther, Ron"]
[Result "1-0"]
[ECO "B10r"]
[Variation "Caro-Kann: Goldman/Spielmann"]

1.e4 c6 2.Nc3 d5 3.Qf3 d4 4.Bc4 Nf6 5.e5 Nbd7 6.exf6 Ne5 7.Bxf7+ Nxf7 8.
fxg7 Bxg7 9.Ne4 d3 10.c3 O-O 11.Qe3 Qd5 12.Nf3 Bg4 13.Nd4 Bh6 14.Qxd3 c5 
15.Nxc5 Qxc5 16.O-O Bf4 17.h3 Qh5 18.Re1 e5 19.Ne2 Bxe2 20.Qxe2 Qxe2 21.
Rxe2 Rad8 22.d4 Bxc1 23.Rxc1 exd4 24.cxd4 Rxd4 25.Rc7 Rb4 26.Ree7 Nd8 27.
Rg7+ 1-0

[/code]

AdminX · Post by **AdminX** » Sat Apr 25, 2009 1:21 am

Thanks Dann, So not new after all.

Dann Corbit · Post by **Dann Corbit** » Sat Apr 25, 2009 2:02 am

Leave it to those correspondence players to play something sneaky.

Rolf · Post by **Rolf** » Sat Apr 25, 2009 2:25 pm

It's kind of premature to propagate that this is a novelty by RYBKA. However FRITZ11 sees also Nbd7 as its first choice. We have a typical position where computers fail to see what's going on. Of course Black can play this move but then it must defend over the whole rest of the game. A human wouldnt play Nbd7. The computer sees the weakness of the Q on f3 and plans Ne5, that's all. But Black remains with a shattered K side. Of course the whole line isnt meant for super GM. It's more something for average chessplayers.

AdminX · Post by **AdminX** » Sat Apr 25, 2009 2:59 pm

Rolf wrote:It's kind of premature to propagate that this is a novelty by RYBKA. However FRITZ11 sees also Nbd7 as its first choice. We have a typical position where computers fail to see what's going on. Of course Black can play this move but then it must defend over the whole rest of the game. A human wouldnt play Nbd7. The computer sees the weakness of the Q on f3 and plans Ne5, that's all. But Black remains with a shattered K side. Of course the whole line isnt meant for super GM. It's more something for average chessplayers.

Maybe you did not see my second post:

"Using other engines I see it appears that allot of other engines like 5. ... Nbd7 as well. So I guess it is more of a computer chess novelty than a Rybka novelty. "

Also Dann has already show that a human has played this line.

Rybka Caro-Kann Novelty

Rybka Caro-Kann Novelty

Re: Rybka Caro-Kann Novelty

Re: Rybka Caro-Kann Novelty

Re: Rybka Caro-Kann Novelty

Re: Rybka Caro-Kann Novelty

Re: Rybka Caro-Kann Novelty

Re: Rybka Caro-Kann Novelty

Re: Rybka Caro-Kann Novelty