Opening Report

Database: Big2011twic871 (4,654,238 games)
Report: 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 b5 (11 games)
ECO: E46 [Nimzo-Indian: Reshevsky Variation]
Generated by Scid 4.3, 2011.08.24

BR BN BB BQ BR BK ::
BP BP BP :: BP BP BP
:: :: BP BN ::
:: BP :: :: ::
BB WP WP :: ::
:: WN WP ::
WP WP :: WN WP WP WP
WR WB WQ WK WB :: WR

1. Statistics and History

1.1 Statistics

                   Games     1-0     =-=     0-1    Score
-----------------------------------------------------------
 All report games     11       4       3       4    50.0%
-----------------------------------------------------------

1.2 Oldest games

1: 0-1(43) Agafonov -- Vitolinsh 2415, Riga 1978 [2]
2: 0-1(27) Gutman -- Vitolinsh, Soviet Union 1979 [11]
3: 0-1(41) Sherbakov 2200 -- Vitolinsh 2430, Beltsy 1979 [8]
4: =-=(37) Agafonov -- Vitolinsh 2430, Riga 1980 [5]
5: 1-0(65) Tverdohlebov -- Vitolinsh 2475, Kaluga 1981 [6]

1.3 Newest games

1: 1-0(27) Lauferon 2195 -- Lauradoux 2121, Loire 2003.11.16 [1]
2: 0-1(39) Timofeev 2295 -- Gusev, Tula 2000 [4]
3: 1-0(37) Karl 2280 -- Boog 2340, Switzerland 1991 [3]
4: =-=(41) Petkevich 2440 -- Vitolinsh 2415, Riga 1985 [10]
5: =-=(41) Utasi 2480 -- Vitolinsh 2410, Jurmala 1985 [9]

1.4 Current popularity

Year               1800-99 1900-49 1950-69 1970-79 1980-89 1990-99 2000-09

Once every X games   ---     ---     ---    45733   58122  1414814 1204728
Frequency in all years: once every 423112 games
In the 10 years to today: once every 2197532 games (down 80% from all years)
In the 5 years to today: once every 0 games (no change 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: 2 1978-1980 25% Agafonov, Nikolay [2,5]
2: 1 1985100% 2500 Gurevich, Mikhail [7]
3: 1 1985 50% 2480 Utasi, Tamas [9]
4: 1 1985 50% 2440 Petkevich, Jusefs [10]
5: 1 2000 0% 2295 Timofeev, Sergey [4]
6: 1 1991100% 2280 Karl, Hans [3]

1.6 Most frequent players (Black)

1: 8 1978-1985 56% 2475 Vitolinsh, Alvis [2,5,6,7,8,9,10,11]
2: 1 1991 0% 2340 Boog, Alexandre [3]
3: 1 2003 0% 2121 Lauradoux, Cedric [1]
4: 1 2000100% Gusev, Aleksey [4]

2. Ratings and Performance

2.1 Average ratings and performance

White rating: 2341 (7 games); White performance: 2463 (61% vs 2383)
Black rating: 2383 (9 games); Black performance: 2291 (43% vs 2341)

2.2 Games with highest average rating

1: 0-1(27) Gutman -- Vitolinsh, Soviet Union 1979 [11]
2: 1-0(36) Gurevich 2500 -- Vitolinsh 2410, Jurmala 1985 [7]
3: =-=(41) Utasi 2480 -- Vitolinsh 2410, Jurmala 1985 [9]
4: 1-0(65) Tverdohlebov -- Vitolinsh 2475, Kaluga 1981 [6]
5: =-=(41) Petkevich 2440 -- Vitolinsh 2415, Riga 1985 [10]
6: 0-1(39) Timofeev 2295 -- Gusev, Tula 2000 [4]
7: 0-1(41) Sherbakov 2200 -- Vitolinsh 2430, Beltsy 1979 [8]
8: 1-0(37) Karl 2280 -- Boog 2340, Switzerland 1991 [3]

3. Result Trends

3.1 Result lengths and frequencies

                 Score      Game length             Frequency       
                          1-0    =-=    0-1    1-0     =-=     0-1  
 Report games    50.0%     41     39     37   36.3%   27.2%   36.3% 
 All games       53.7%     39     35     40   38.7%   29.8%   31.2%

3.2 Shortest wins (White)

1: 1-0(27) Lauferon 2195 -- Lauradoux 2121, Loire 2003 [1]
2: 1-0(36) Gurevich 2500 -- Vitolinsh 2410, Jurmala 1985 [7]
3: 1-0(37) Karl 2280 -- Boog 2340, Switzerland 1991 [3]
4: 1-0(65) Tverdohlebov -- Vitolinsh 2475, Kaluga 1981 [6]

3.3 Shortest wins (Black)

1: 0-1(27) Gutman -- Vitolinsh, Soviet Union 1979 [11]
2: 0-1(39) Timofeev 2295 -- Gusev, Tula 2000 [4]
3: 0-1(41) Sherbakov 2200 -- Vitolinsh 2430, Beltsy 1979 [8]
4: 0-1(43) Agafonov -- Vitolinsh 2415, Riga 1978 [2]

4. Moves and Themes

4.1 Move orders reaching the report position

There was only one move order reaching this position:
1: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 b5 (11)

4.2 Moves from the report position

    Move   ECO       Frequency    Score  AvElo Perf AvYear %Draws
 1: cxb5              10: 90.9%   45.0%              1984   30%
 2: a3                 1:  9.0%  100.0%              2003    0%
_______________________________________________________________
TOTAL:                11:100.0%   50.0%              1986   27%

4.3 Positional Themes

Frequency of themes in the first 20 moves of each game:
Same-side castling: 55% White Isolated Queen Pawn: 18%
Opposite castling: 0% Black Isolated Queen Pawn: 9%
Kingside pawn storm: 0% White Pawn on 5/6/7th rank: 82%
Queens exchanged: 45% Black Pawn on 2/3/4th rank: 18%
Only one side has Bishop pair: 0% Open c/d/e file: 36%

4.4 Endgames

Material at the end of each game:
P BN R R,BN Q Q,BN Q,RQ,R,BN
Report games 0% 9% 18% 9% 0% 0% 0% 64%
All games 3% 10% 9% 25% 2% 4% 5% 43%

5. Theory Table

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 b5: +4 =3 -4 (5.5/11: 50%)
678910111213
1 cxb51
a6 		Nf42
Bb7 		bxa6
Nxa6 		Bd3
d6 		OO
e5 		Nh5
Re8 		Nxf6+
Qxf6 		Qg4
Ba53 		3: 67%
2 ...
... 		a3
axb5 		Bd2
Be7 		Nxb5
Ba6 		Nbc3
c5 		dxc5
Bxc5 		b4
Be7 		Nd4
Bb74 		1: 0%
3 ...
... 		bxa6
Bxa6 		Bd25
c5 		a3
Bxc3 		Bxc3
Ne4 		dxc5
Bxe2 		Bxe2
Nxc3 		bxc3
Qa56 		2: 75%
4 ...
... 		Ng3
Bb77 		Bd38
Bxg2 		Rg1
Bb7 		e4
Ne8 		h4
g6 		Bh6
Qxh4 		Qd2
Qf69 		3: 50%
5 ...
... 		...
... 		Bd2
Bxc310 		Bxc3
axb5 		Bxb5
Bxg2 		Rg1
Bc6 		Nh5
Nxh5 		Qxh5
Bxb511 		2: 25%
  1. 6.a3 Bxc3+ 7.Nxc3 bxc4 8.Bxc4 Bb7 9.OO d5 10.Bd3 Nbd7 11.b4 Ne4 12.Ne2 a5 13.Bd2 axb4 14.Bxb4 Re8 1-0(27) Lauferon 2195 -- Lauradoux 2121, Loire 2003.

  2. 7.Bd2 Bb7 8.a3 Bxc3 9.Nxc3 axb5 10.Nxb5 Ne4 11.Nc3 Nxd2 12.Qxd2 Qh4 13.h3 d6 14.Rg1 c5 0-1(43) Agafonov -- Vitolinsh 2415, Riga 1978.

  3. 14.a3 Bb6 1-0(37) Karl 2280 -- Boog 2340, Switzerland 1991.

  4. 14.Nf3 Nd5 0-1(39) Timofeev 2295 -- Gusev, Tula 2000.

  5. 8.Ng3 Bxf1 9.Nxf1 c5 10.Ng3 Qa5 11.Ne2 Ne4 12.Bd2 Nxd2 13.Qxd2 d5 14.OO Nc6 =-=(37) Agafonov -- Vitolinsh 2430, Riga 1980.

  6. 14.OO Qxc5 1-0(65) Tverdohlebov -- Vitolinsh 2475, Kaluga 1981.

  7. 7...d5 8.Bd2 Nbd7 9.Be2 Be7 10.a4 axb5 11.axb5 Bb7 12.OO g6 13.Qc2 Bd6 14.Na4 Qe7 1-0(36) Gurevich 2500 -- Vitolinsh 2410, Jurmala 1985.

  8. 8.f3 d5 9.bxa6 Bxa6 10.Bxa6 Rxa6 11.OO c5 12.a3 cxd4 13.exd4 Bxc3 14.bxc3 Nc6 0-1(41) Sherbakov 2200 -- Vitolinsh 2430, Beltsy 1979.

  9. 14.e5 Qh4 =-=(41) Utasi 2480 -- Vitolinsh 2410, Jurmala 1985.

  10. 8...axb5 9.Nxb5 Be7 10.Nc3 c5 11.dxc5 Bxc5 12.Rc1 Na6 13.a3 Be7 14.b4 Nc7 =-=(41) Petkevich 2440 -- Vitolinsh 2415, Riga 1985.

  11. 14.Qh6 g6 0-1(27) Gutman -- Vitolinsh, Soviet Union 1979.