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Subject: Re: SSDF(Hiarcs 9 - CM9_SKR)A1200, 2-3

Author: Mihaly Szalai

Date: 09:33:09 10/29/03

Go up one level in this thread


On October 28, 2003 at 17:38:43, John Merlino wrote:

>About one opening move in the second game, I would like some insights into from
>the strong players, if I could:
>
>1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O
>
>[D]rnbqk2r/ppp1bppp/8/3p4/3Pn3/3B1N2/PPP2PPP/RNBQ1RK1 b kq - 0 7
>
>7...Bf5?
>
>I can find 27 games in the CM9000 database in which this move is played and the
>tally is +14 =12 -1! Black has only won once in this database, and that was when
>a Master played the move against an unranked player. Very few GMs have played
>this move and scored:
>
>Ivanchuk drew Shirov (rated equally)
>Heubner drew Adorjan (rated 50 points worse)
>Christiansen drew Ljubojevic (rated 90 points higher)
>Reshevsky drew Liberzon (rated 45 points worse)
>
>Panno apparently tried this move against Karpov in 1980 and lost (no surprise
>there, as Karpov was rated 185 points higher).
>
>My point is, if this move is so poor, why is it still in an opening book?
>CM9000's book always plays the very common 7...Nc6 in this position. If its
>opponent plays 7...Bf5, it will respond with either 8.c4 or 8.Re1 with equal
>probability.
>
>Any thoughts would be appreciated....
>
>jm

In my General.ctg there's a question mark after 7.- Bf5.
This is the Fritz 6 book from 1999. They say there's a newer one,
but I don't know nothing about it.
(I converted the CM9000.obk to ctg and there's also a question mark.)

Here is the ChessBase Opening Report from the Fritz 8 database: this
confirms that 7.- Bf5 is a bad line.

Best wishes (and watch out the fire!)
Mihaly

Opening report

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.0-0 Bf5

C42, 7...Bf5

30 games in 'Fritz8-Database'


1. History
Earliest game:
Andrin,A - Bills,W 1-0, USA-op52 Forth Worth 1951
Latest grandmaster game:
Ulibin,M - Arkhipov,S ½-½, Abu Dhabi ADCF Masters 2002


Games played in years (30)


2. Players

a) Strong grandmasters who used this line as Black:

Robert Huebner
	Result=1/2 	1980 	Elo-Ø: 2600 	games: 2
Vlastimil Hort 	Result=0.5/1 	1994 	Elo-Ø: 2535 	games: 1
Mihail Tal 	Result=0.5/1 	1981 	Elo-Ø: 2555 	games: 1
Vassily Ivanchuk 	Result=0.5/2 	2001-2002 	Elo-Ø: 2717 	games: 2
Oscar Panno 	Result=0/1 	1980 	Elo-Ø: 2540 	games: 1

b) Other notable players:

Rodney Perez 	Result=2.5/9 	1998-2001 	Elo-Ø: 2449 	games: 9


3. Statistics

Black scores badly (28%).
Black performs Elo 2354 against an opposition of Elo 2520 (-166).
White performs Elo 2638 against an opposition of Elo 2472 (+166).
White wins: 13 (=43%), Draws: 17 (=57%), Black wins: 0 (=0%)
The drawing quote is high. (17% quick draws, < 20 Moves)

White wins are longer than average (43).
Draws are short (29).


4. Moves and Plans

a) 8.Re1

20 games, 1951-2002, Ø=1988
White scores well (70%).
Elo-Ø: 2513, 18 games. Performance = Elo 2649
played by: Shirov, 2715, 0.5/1; Almasi, 2640, 1/1; Korneev, 2619, 1/1;
Ljubojevic, 2605, 0.5/1; Ulibin, 2589, 0.5/1;

You should play:
8...Nc6 Click for games




Shirov,A - Ivanchuk,V ½-½; Almasi,Z - Ivanchuk,V 1-0; Adorjan,A - Huebner,R ½-½;
Adorjan,A - Huebner,R ½-½; Ljubojevic,L - Christiansen,L ½-½; Ulibin,M -
Arkhipov,S ½-½

Main line:

9.c4 	79%, 2728
7 games
9.Nbd2 Nxd2 10.Qxd2 Bxd3 11.Qxd3 0-0 	57%, 2584
7 games

Critical line:
9.c4 21 % Black. Click for games


Plans White:
..(Nb8-c6)/Nb1-d2/ ..(Ne4xd2)/Qd1xd2/
..(Bf5xd3)/Qd2xd3/Bc1-f4/Re1-e2/Ra1-e1/c2-c3 (3) 	Click for games
c2-c4/ ..(Nc6-b4)/Bd3-f1/a2-a3/c4xd5/Nb1-c3/ ..(Ne4xc3)/b2xc3/Bc1-f4/Ra1-a2 (2)
	Click for games
Nb1-c3/Bc1-f4/Ra1-a2/Ra2-e2/Qd1xe2 (2) 	Click for games
c2-c3/Bc1-f4/Re1-e3/Bf4xd6/Ra1-e1 (2) 	Click for games
c2-c4/Nb1-c3/Qd1xd3/Qd3xc4 (2) 	Click for games
..(Ne4xc3)/b2xc3/Qd1xd3/Qd3xc4/Ra1-b1 (2) 	Click for games

Plans Black:
Bf5xd3/0-0/Rf8-e8/Be7-d6 (4) 	Click for games
Ne4xd2/Bf5xd3/0-0/Qd8-d7/a7-a6/Ra8-e8/Be7-d8 (2) 	Click for games
Nc6-b4/0-0/Nb4-c6/Qd8xd5/Ne4xc3/Be7-f6 (2) 	Click for games
Qd8xd5/Be7-f6/Qd5-d7/Ra8-e8 (2) 	Click for games
Nc6-b4/0-0 (4) 	Click for games
Rf8-e8/Qd8-d7/b7-b6 (2) 	Click for games


b) 8.c4

8 games, 1980-2002, Ø=1993
White scores excellently (81%).
Elo-Ø: 2529, 8 games. Performance = Elo 2672
played by: Karpov, 2708, 2/2; Tal, 2555, 1/1; Zhang Pengxiang, 2522, 1/1; De
Firmian, 2520, 1/1; Abreu, 2410, 0.5/1

You should play:
8...dxc4

Karpov,A - Panno,O 1-0; Teran Alvarez,I - Perez,R ½-½; Vazquez,R - Perez,R ½-½;
Abreu,A - Perez,R ½-½; Tal,M - Veingold,A 1-0; Zhang Pengxiang - Del Rey,D 1-0

Main line:

9.Bxc4 	79%, 2651
7 games


5. Opening keys

Key: 7.... Bf5

Generated with ChessBase 8.0



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