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English Opening



 
 
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  #1  
Old July 16th 03, 06:15 PM
Sam Stark
external usenet poster
 
Posts: n/a
Default English Opening

Nd5 Interesting. Note h4 even more interesting? You need for analysis equal to chess engine a database of games. One complements the other. This is based on the board position prior to 14 Nd5.

Opening Report
Database: (3,201,892 games)
Report: (31 games)
Generated by Scid 3.3, 2003.07.16


1. Statistics and History
1.1 Statistics
Games 1-0 =-= 0-1 Score
-----------------------------------------------------------
All report games 31 12 10 9 54.8%

Both rated 2600+ 0 0 0 0 0.0%
Both rated 2500+ 5 1 3 1 50.0%
Both rated 2400+ 10 4 3 3 55.0%
Both rated 2300+ 19 7 6 6 52.6%

Since 1996.01.01 12 6 2 4 58.3%
Since 1998.01.01 9 4 2 3 55.5%
Since 2000.01.01 3 2 0 1 66.6%
Since 2001.01.01 0 0 0 0 0.0%
-----------------------------------------------------------

1.2 Oldest games
1: 0-1(29) Kaiszauri 2385 -- Raaste, Tt Gluecksburg GER 1977 [2]
2: 0-1(29) Kaiszauri 2385 -- Raaste, Gluecksburg GER 1977.09 [2]
3: =-=(41) Panno 2545 -- Gheorghiu 2540, Buenos Aires ARG 1979 [11]
4: =-=(41) Panno 2545 -- Gheorghiu 2540, Buenos Aires ARG 1979.11 [11]
5: 1-0(43) Miles 2575 -- Rodriguez 2430, Surakarta 1982 [8]

1.3 Newest games
1: 0-1(41) Vilela 2384 -- Spraggett 2501, Lisbon POR 2000.11.24 [9]
2: 1-0(40) Hansen 2613 -- Duppel 2376, GER 2000.10.14 [15]
3: 1-0(40) Hansen 2613 -- Duppel 2376, Porz GER 2000.10.14 [15]
4: =-=(29) Seel 2116 -- Wyrwich, NRW-Jugendliga 1999 [6]
5: 1-0(40) Poyato 2205 -- Garcia 2352, Havana Provincial 1999 [3]

1.4 Current popularity
Year 1800-99 1900-49 1950-69 1970-79 1980-89 1990-99 2000-09
Once every X games --- --- --- 50447 50257 117269 168173

Frequency in all years: once every 103286 games
In the 10 years to today: once every 117899 games (down 11% from all years)
In the 5 years to today: once every 127819 games (down 18% from all years)
In the 1 year to today: once every 0 games (no change from all years)

1.5 Most frequent players (White)
1: 5 1982-1988 80% 2575 Miles, Anthony J [1,8]
2: 2 2000 100% 2613 Hansen, Curt [15]
3: 2 1998 0% 2575 Slobodjan, Roman [17]
4: 2 1979 50% 2545 Panno, Oscar R [11]
5: 2 1977 0% 2385 Kaiszauri, Konstanty [2]
6: 1 1994 100% 2615 Gulko, Boris F [9]

1.6 Most frequent players (Black)
1: 3 1982 0% 2430 Rodriguez, Orestes [8]
2: 2 1979 50% 2540 Gheorghiu, Florin [11]
3: 2 1998 100% 2505 Kogan, Artur [17]
4: 2 2000 0% 2376 Duppel, Matthias [15]
5: 2 1977 100% Raaste, Eero J [2]
6: 1 1996 100% 2550 Wojtkiewicz, Aleksander [10]

2. Ratings and Performance
2.1 Average ratings and performance
White rating: 2446 (29 games); White performance: 2476 (58% vs 2419)
Black rating: 2419 (26 games); Black performance: 2410 (45% vs 2446)

2.2 Games with highest average rating
1: 1-0(40) Gulko 2615 -- Marin 2530, Moscow RUS 1994 [9]
2: =-=(41) Panno 2545 -- Gheorghiu 2540, Buenos Aires ARG 1979 [11]
3: =-=(41) Panno 2545 -- Gheorghiu 2540, Buenos Aires ARG 1979 [11]
4: 0-1(35) Slobodjan 2575 -- Kogan 2485, Fuerth GER 1998 [17]
5: =-=(17) Miles 2500 -- Kudrin 2545, USA 1988 [1]
6: 0-1(35) Slobodjan 2530 -- Kogan 2505, Fuerth GER 1998 [17]
7: 0-1(49) Hergott 2485 -- Wojtkiewicz 2550, Quebec active 1996 [10]
8: 1-0(43) Miles 2575 -- Rodriguez 2430, Surakarta 1982 [8]

3. Result Trends
3.1 Result lengths and frequencies
Score Game length Frequency
1-0 =-= 0-1 1-0 =-= 0-1
Report games 54.8% 40 32 45 38.7% 32.2% 29.0%
All games 54.3% 38 35 39 39.2% 30.1% 30.6%

3.2 Shortest wins (White)
1: 1-0(21) Eising 2315 -- Ritz 2180, Oberliga Sued W9697 1997 [1]
2: 1-0(30) Large -- Povah 2335, Mitcham1-Guildford1, 1998 [1]
3: 1-0(38) Eingorn 2580 -- Hobuss 2360, Travemuende 1996 [5]
4: 1-0(40) Gulko 2615 -- Marin 2530, Moscow RUS 1994 [9]
5: 1-0(40) Hansen 2613 -- Duppel 2376, GER 2000 [15]

3.3 Shortest wins (Black)
1: 0-1(29) Kaiszauri 2385 -- Raaste, Tt Gluecksburg GER 1977 [2]
2: 0-1(29) Kaiszauri 2385 -- Raaste, Gluecksburg GER 1977 [2]
3: 0-1(35) Slobodjan 2575 -- Kogan 2485, Fuerth GER 1998 [17]
4: 0-1(35) Slobodjan 2530 -- Kogan 2505, Fuerth GER 1998 [17]
5: 0-1(41) Vilela 2384 -- Spraggett 2501, Lisbon POR 2000 [9]

4. Moves and Themes
4.1 Move orders reaching the report position
There were 25 move orders reaching this position. The top 8 a
1: 1.Nf3 c5 2.b3 b6 3.g3 Bb7 4.Bg2 Nf6 5.Bb2 e6 6.O-O Be7 7.c4 O-O 8.Nc3 d6 9.Re1 a6 10.e4 Nbd7 11.d4 cxd4 12.Nxd4 Qc7 13.Rc1 Rfe8 (2)
2: 1.Nf3 c5 2.c4 Nf6 3.Nc3 e6 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.Re1 a6 8.e4 d6 9.b3 O-O 10.d4 cxd4 11.Nxd4 Qc7 12.Bb2 Nbd7 13.Rc1 Rfe8 (2)
3: 1.c4 Nf6 2.Nc3 c5 3.Nf3 e6 4.g3 b6 5.Bg2 Bb7 6.O-O a6 7.b3 d6 8.Bb2 Be7 9.Re1 Nbd7 10.e4 O-O 11.d4 cxd4 12.Nxd4 Qc7 13.Rc1 Rfe8 (2)
4: 1.c4 c5 2.Nf3 Nf6 3.Nc3 b6 4.g3 Bb7 5.Bg2 e6 6.O-O Be7 7.Re1 a6 8.e4 d6 9.b3 O-O 10.d4 cxd4 11.Nxd4 Qc7 12.Bb2 Nbd7 13.Rc1 Rfe8 (2)
5: 1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.b3 e6 6.Bb2 Be7 7.O-O O-O 8.Nc3 d6 9.Re1 Nbd7 10.e4 a6 11.d4 cxd4 12.Nxd4 Qc7 13.Rc1 Rfe8 (2)
6: 1.c4 e6 2.Nc3 c5 3.Nf3 Nf6 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.Re1 d6 8.e4 Nbd7 9.d4 cxd4 10.Nxd4 Qc7 11.b3 a6 12.Bb2 O-O 13.Rc1 Rfe8 (2)
7: 1.Nf3 Nf6 2.c4 b6 3.g3 c5 4.Bg2 Bb7 5.O-O e6 6.Nc3 a6 7.Re1 d6 8.e4 Qc7 9.b3 Be7 10.Bb2 Nbd7 11.d4 cxd4 12.Nxd4 O-O 13.Rc1 Rfe8 (1)
8: 1.Nf3 Nf6 2.c4 c5 3.Nc3 e6 4.g3 a6 5.Bg2 Qc7 6.O-O d6 7.b3 Be7 8.Bb2 O-O 9.Rc1 b6 10.d4 cxd4 11.Nxd4 Bb7 12.e4 Nbd7 13.Re1 Rfe8 (1)

4.2 Moves from the report position
Move ECO Frequency Score AvElo Perf AvYear
1: h3 8: 25.8% 56.2% 1997
2: Rc2 6: 19.3% 33.3% 1990
3: h4 3: 9.6% 100.0% 1982
4: f4 3: 9.6% 50.0% 1990
5: Nd5 3: 9.6% 83.3% 1995
6: g4 2: 6.4% 0.0% 1977
7: Qc2 2: 6.4% 50.0% 1988
8: Qd2 2: 6.4% 50.0% 1994
9: Nc2 1: 3.2% 50.0% 1993
10: Kh1 1: 3.2% 100.0% 1997
__________________________________________________ ________
TOTAL: 31:100.0% 54.8% 2446 2455 1991

4.3 Positional Themes
Frequency of themes at move 8:
Same-side castling: 100% Isolated Queen Pawn: 3%
Opposite castling: 0% White Pawn on 5/6/7th rank: 45%
Both Kings uncastled: 0% Black Pawn on 2/3/4th rank: 10%
Kingside pawn storm: 16% Open c/d/e file: 45%
Queens exchanged: 0% Only one side has Bishop pair: 3%

4.4 Endgames
Material at the end of each game:

P BN R R,BN Q Q,BN Q,R Q,R,BN
Report games 0% 10% 10% 6% 0% 13% 0% 61%
All games 2% 9% 9% 25% 2% 4% 4% 44%

5. Theory Table
: +12 =10 -9 (17/31: 55%) 1 2 3 4 5 6 7 8
1 g41
Nf8 g5
N6d7 f4
d5 exd5
Qxf4 dxe6
Bxg2 exf7+
Qxf7 Kxg2
Bxg5 Rc2
Nf62 8: 44%
2 Nd5
exd5 cxd5
Qd83 Nc6
Bxc6 dxc6
Nc5 c7
Qc8 e5
dxe5 Bxa8
Qxa8 Bxe54
Rc85 3: 83%
3 f4
Rad86 Qe2
Bf8 h3
Qb8 Nc2
g6 Rcd1
Nh5 Qf2
e5 f5
b5 cxb5
axb57 3: 50%
4 h4
Bf8 g4
d5 g5
Nxe4 cxd5
Nxc3 Rxc3
Qd6 dxe6
Bxg2 exf7+
Kxf7 Kxg2
Kg88 3: 100%
5 Rc2
Rad89 Bc110
Bf8 g4
h6 h4
g6 g5
hxg5 hxg5
Nh7 Be3
Bg7 Nde2
Nc511 6: 33%
6 h3
Bf812 Qd213
g6 g4
Rac8 Nde2
Qb8 Ng3
h6 Rcd1
Red8 Qe2
Bc6 Bf114
3: 67%
7 ...
Rac8 Rc2
Qb815 Rce2
Bf816 f4
e5 fxe5
dxe5 Nf5
b5 cxb5
g6 Ne3
Bb417 5: 50%

1.. 1.Qd2 Rad8 2.Nc2 Qb8 3.h3 Qa8 4.Qe2 Bf8 5.Ba1 Rc8 6.Nd4 g6 7.Qe3 Bg7 8.Rcd1 Nc5 9.Re2 Rcd8 0-1(83) Arsovic 2385 -- Kovacevic 2360, Pula op Pula CRO 1990; 2.h3 Bf8 3.Nde2 Qb8 4.g4 b5 5.Ng3 b4 6.Nce2 d5 7.cxd5 exd5 8.exd5 Nxd5 9.Bxd5 Nb6 1-0(30) Large -- Povah 2335, Mitcham1-Guildford1, 1998.
1.Qc2 Rad8 2.Qb1 Qb8 3.Re2 Bf8 4.Rce1 =-= Miles 2500 -- Kudrin 2545, USA 1988; =-= Miles 2500 -- (USA), USA-ch 1988.
1.Nc2 Rac8 2.Ne3 Qb8 3.f3 Qa8 4.a3 Rc7 5.Kh1 Rc5 6.b4 Rc7 7.Qd4 Rec8 8.g4 g5 9.h4 h6 =-=(55) Farago 2340 -- Krutti 2345, Budapest FS02 IM 1993.
1.Kh1 Rad8 2.f4 Bf8 3.f5 exf5 4.Nd5 Qb8 5.Nxf5 Nxd5 6.Nh6+ Kh8 7.Nxf7+ Kg8 8.Nxd8 1-0 Eising 2315 -- Ritz 2180, Oberliga Sued W9697 1997.

2.. 9.Rxe8 Rxe8 0-1(29) Kaiszauri 2385 -- Raaste, Tt Gluecksburg GER 1977; 0-1(29) Kaiszauri 2385 -- Raaste, Gluecksburg GER 1977.

3.. 2...Nc5 3.b4 Bf8 4.bxc5 bxc5 5.Nf5 Bc8 6.Qf3 Bxf5 7.Qxf5 Rab8 8.Ba1 Nd7 9.Bf1 Ne5 1-0(40) Poyato 2205 -- Garcia 2352, Havana Provincial 1999.

4.. 8.Rxe5 Ne6 9.Rxe6 fxe6 =-=(49) Contin 2310 -- Servat 2445, Buenos Aires ARG 1989.

5.. 9.h4 a5 1-0(38) Eingorn 2580 -- Hobuss 2360, Travemuende 1996.

6.. 1...h5 2.h3 Rad8 3.b4 Qb8 4.Qe2 d5 5.e5 Ne4 6.Nxe4 dxe4 7.a3 a5 8.Nc2 h4 9.g4 Nf8 0-1(46) Bode -- Abel 2305, Wiesbaden op 1990.
1...h6 2.f5 Nf8 3.fxe6 fxe6 4.Qe2 Rac8 5.Bh3 Bd8 6.e5 N6h7 7.Nd5 Qd7 8.exd6 Ng5 9.Bg4 Qxd6 =-=(29) Seel 2116 -- Wyrwich, NRW-Jugendliga 1999.

7.. 9.Kh2 Ba8 1-0(63) Sunye Neto 2475 -- Segal, BRA ch Brasilia 1982.

8.. 9.Nf5 Qxd1 1-0(43) Miles 2575 -- Rodriguez 2430, Surakarta 1982; 1-0(43) Miles 2575 -- Rodriguez 2430, Surakarta/Denpasar 1982; 1-0(43) Miles 2575 -- Rodriguez 2430, Surakarta/Denpasar INA 1982.

9.. 1...Bf8 2.f4 Rad8 3.Rd2 Qb8 4.Bf3 h5 5.Bxh5 e5 6.Nc2 b5 7.Bf3 bxc4 8.f5 d5 9.exd5 cxb3 1-0(40) Gulko 2615 -- Marin 2530, Moscow RUS 1994; 2.Rd2 Rad8 3.h3 g6 4.Qa1 Qb8 5.Nc2 Ba8 6.Ne3 h5 7.f4 b5 8.cxb5 axb5 9.Nf1 b4 0-1(58) Barczay 2395 -- Yudasin 2540, Budapest HUN 1989.
1...Rac8 2.Rce2 Bf8 3.h3 Qb8 4.Kh2 Ba8 5.Rd2 h6 6.Qe2 Nc5 7.Qf1 Bb7 8.Nc2 Ncd7 9.Ne3 Bc6 0-1(41) Vilela 2384 -- Spraggett 2501, Lisbon POR 2000.

10.. 2.Qa1 Qb8 3.h3 Qa8 4.Rce2 Bf8 5.Re3 Nc5 6.b4 Ncd7 7.a3 Rc8 8.Qa2 Ne5 9.Bf1 g6 0-1(49) Hergott 2485 -- Wojtkiewicz 2550, Quebec active 1996.

11.. 9.Qd2 Qb8 =-=(41) Panno 2545 -- Gheorghiu 2540, Buenos Aires ARG 1979; =-=(41) Panno 2545 -- Gheorghiu 2540, Buenos Aires ARG 1979.

12.. 1...Rad8 2.Kh2 Qb8 3.Qc2 Bf8 4.Rcd1 Rc8 5.Qd2 Qa8 6.Re2 g6 7.Nc2 b5 8.cxb5 axb5 9.Nxb5 Qxa2 =-=(27) Banaszek 2290 -- Oesterle 2375, Oberliga Wuert9495 1995.

13.. 2.Rc2 Ne5 3.Rd2 Nfd7 4.Kh2 Nc6 5.Nc2 Rac8 6.f4 Nf6 7.Ne3 Rcd8 8.Qb1 Qb8 9.Red1 Ba8 1-0(50) Ianov 2360 -- Cyborowski 2205, Legnica 1995.

14.. =-= Petrosian 2475 -- Stempin 2395, Polanica Zdroj POL 1989.

15.. 2...Bf8 3.Rce2 g6 4.Nc2 Rcd8 5.Rd2 h5 6.h4 Ne5 7.Ne3 Bc6 8.f4 Ned7 9.a4 Bb7 1-0(40) Hansen 2613 -- Duppel 2376, GER 2000; 1-0(40) Hansen 2613 -- Duppel 2376, Porz GER 2000.

16.. 3...g6 4.Qd2 Bf8 5.Kh2 Bg7 6.Rd1 Qa8 7.Rde1 Nc5 8.Ba1 Qb8 9.Bb2 Red8 =-=(27) Bakre 2295 -- Csom 2460, Paks HUN 1998.

17.. 9.bxa6 Bxa6 0-1(35) Slobodjan 2530 -- Kogan 2505, Fuerth GER 1998; 0-1(35) Slobodjan 2575 -- Kogan 2485, Fuerth GER 1998.


"Claus Heier" wrote in message om...
Hi,

I am analyzing the following position in an English Opening (Hedgehog
System):

r3r1k1/1bqnbppp/pp1ppn2/8/2PNP3/1PN3P1/PB3PBP/2RQR1K1 w - - 0 14

I found a few games that contained the sacrifice 14.Nd5 with the
following
continuations:

a) 14.Nd5 exd5 15.cxd5 Nc5 16.b4 Bf8 17.bxc5 bxc5 18.Nf5 with the
result 1-0 after 40 moves
b) 14.Nd5 exd5 15.cxd5 Qd8 16.Nc6 Bxc6 17.dxc6 Nc5 18.c7 Qc8 19.e5
dxe5 20.Bxa8 Qxa8 21.Bxe5 Rc8 22.Bxf6 Bxf6 23.Qd6 with the result 1-0
after 41 moves

Does White have enough to win, especially in game a? Or should Black
be OK?

BTW, I would not trust computer analysis, as they would not even find
the move 14.Nd5.

If nothing else, it may be just an example that computer analysis does
not help much.

Claus


  #2  
Old July 17th 03, 02:56 AM
Claus Heier
external usenet poster
 
Posts: n/a
Default English Opening

Hi Sam,

"Sam Stark" wrote in message .com...
Nd5 Interesting. Note h4 even more interesting? You need for analysis
equal to chess engine a database of games. One complements the other.
This is based on the board position prior to 14 Nd5.


That was not really the point of my post. I do have a database and
found the two games I posted (plus another one with a weaker
continuation for White). Also, I do not think that 30 games played and
in particular 3 with 14.Nd5 and 3 with 14.h4 really give you - what I
would call - reliable statistics.

My point was to solicit some feedback as to how you (or anybody else)
evaluate the position, if you think that White has enough to play for
a win, or if there are any resources that Black did not find over the
board (and that I am missing, too).

Thanks,
claus
 




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