Opening Report

Database: all (3,702,090 games)
Report: 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 Bb4 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (27 games)
ECO: B45h [Sicilian: Taimanov, Four Knights, 6.Be2]
Generated by Scid 3.1, 2006.04.26

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

1. Statistics and History

1.1 Statistics

                   Games     1-0     =-=     0-1    Score
-----------------------------------------------------------
 All report games     27      14       8       5    66.6%

 Both rated 2600+      0       0       0       0     0.0%
 Both rated 2500+      0       0       0       0     0.0%
 Both rated 2400+      2       1       1       0    75.0%
 Both rated 2300+      6       2       2       2    50.0%

 Since 1996.01.01     12       7       3       2    70.8%
 Since 1998.01.01     10       5       3       2    65.0%
 Since 2000.01.01      7       4       1       2    64.2%
 Since 2001.01.01      5       3       1       1    70.0%
-----------------------------------------------------------

1.2 Oldest games

1: 1-0(12) Hansen -- Hinrich, Denmark 1957 [1]
2: 0-1(43) Madeira de Ley -- Ribeiro, Rio de Janeiro BRA 1958.12 [10]
3: 1-0(24) Doe -- Kowalski, Canada 1961 [21]
4: 1-0(28) Kupreichik -- Barenboim, Riga LAT 1968 [20]
5: 1-0(31) Rantanen 2460 -- Ivanovic 2460, Tallinn EST 1979 [14]

1.3 Newest games

1: 1-0(46) Hasanov 2229 -- Roitman 1920, Herceg Novi SCG 2005.09.14 [4]
2: 1-0(25) Cheparinov 2531 -- Rusev 2379, Plovdiv BUL 2003.11.09 [19]
3: 1-0(20) Jaracz 2253 -- Kunicki 2026, Polanica Zdroj POL 2001.08.16 [20]
4: 0-1(41) Perez Perez 2342 -- Rooms 2358, Cuba 2001.02.01 [16]
5: =-=(19) Arzumanian 2437 -- Pilavov 2414, Alushta UKR 2001 [5]

1.4 Current popularity

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

Once every X games   ---     ---    41796  185839  109242  161708  148986
Frequency in all years: once every 137114 games
In the 10 years to today: once every 175787 games (down 21% from all years)
In the 5 years to today: once every 223663 games (down 38% from all years)
In the 1 year to today: once every 59082 games (up 132% from all years)

1.5 Most frequent players (White)

  1:   1       2003 100%  2531  Cheparinov, Ivan [19]
  2:   1       1996 100%  2490  Degraeve, Jean-Marc [17]
  3:   1       1994   0%  2480  Delchev, Aleksander [13]
  4:   1       1979 100%  2460  Rantanen, Yrjo A [14]
  5:   1       2001  50%  2437  Arzumanian, Georgy [5]
  6:   1       1993  50%  2395  Sorensen, Jan [15]

1.6 Most frequent players (Black)

  1:   2  1993-1994  75%  2385  Mastrokoukos, Georgios [8,13]
  2:   2       1989  50%        Krempel, Thomas [9]
  3:   1       1979   0%  2460  Ivanovic, Bozidar [14]
  4:   1       2001  50%  2414  Pilavov, G [5]
  5:   1       1996   0%  2380  Herzog, Adolf [11]
  6:   1       2003   0%  2379  Rusev, Krasimir [19]

2. Ratings and Performance

2.1 Average ratings and performance

White rating: 2313 (18 games); White performance: 2310 (61% vs 2230)
Black rating: 2230 (18 games); Black performance: 2188 (33% vs 2313)

2.2 Games with highest average rating

1: 1-0(31) Rantanen 2460 -- Ivanovic 2460, Tallinn EST 1979 [14]
2: 1-0(25) Cheparinov 2531 -- Rusev 2379, Plovdiv BUL 2003 [19]
3: 1-0(28) Kupreichik -- Barenboim, Riga LAT 1968 [20]
4: 0-1(63) Delchev 2480 -- Mastrokoukos 2385, Sofia BUL 1994 [13]
5: =-=(19) Arzumanian 2437 -- Pilavov 2414, Alushta UKR 2001 [5]
6: 0-1(41) Perez Perez 2342 -- Rooms 2358, Cuba 2001 [16]
7: 1-0(31) Degraeve 2490 -- Hagege 2175, France 1996 [17]
8: =-=(30) Ponater -- Krempel, GER 1989 [9]

3. Result Trends

3.1 Result lengths and frequencies

                 Score      Game length             Frequency       
                          1-0    =-=    0-1    1-0     =-=     0-1  
 Report games    66.6%     26     25     47   51.8%   29.6%   18.5% 
 All games       54.1%     38     36     39   39.6%   29.0%   31.3%

3.2 Shortest White wins

1: 1-0(12) Hansen -- Hinrich, Denmark 1957 [1]
2: 1-0(17) Chiarelli -- Iannicca, Ohio Congress 1980 [1]
3: 1-0(18) Schlenker -- Trettin, Tuebingen Bp 1982 [2]
4: 1-0(18) Hansen 2075 -- Ostersen 1900, Sommer 1990 [3]
5: 1-0(20) Jaracz 2253 -- Kunicki 2026, Polanica Zdroj POL 2001 [20]

3.3 Shortest Black wins

1: 0-1(35) Schindler -- Halbritter 2010, Bayern 2000 [12]
2: 0-1(41) Perez Perez 2342 -- Rooms 2358, Cuba 2001 [16]
3: 0-1(43) Madeira de Ley -- Ribeiro, Rio de Janeiro BRA 1958 [10]
4: 0-1(55) Pyhala 2350 -- Sammalvuo 2280, Helsinki FIN 1994 [10]
5: 0-1(63) Delchev 2480 -- Mastrokoukos 2385, Sofia BUL 1994 [13]

4. Moves and Themes

4.1 Move orders reaching the report position

There were 8 move orders reaching this position:
1: 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 Bb4 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (11)
2: 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 Bb4 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (7)
3: 1.e4 c5 2.Nc3 e6 3.Nf3 Nc6 4.d4 cxd4 5.Nxd4 Nf6 6.Be2 Bb4 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (2)
4: 1.e4 c5 2.Nf3 Nc6 3.Nc3 e6 4.d4 cxd4 5.Nxd4 Nf6 6.Be2 Bb4 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (2)
5: 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Bb4 6.Be2 Nf6 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (2)
6: 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Bb4 6.Be2 Nf6 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (1)
7: 1.e4 c5 2.Nf3 Nf6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.Be2 Bb4 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (1)
8: 1.e4 c5 2.Nf3 e6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 Nf6 6.Be2 Bb4 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4 (1)

4.2 Moves from the report position

    Move   ECO       Frequency    Score  AvElo Perf AvYear
 1: O-O               11: 40.7%   36.3%              1991
 2: Qf6               11: 40.7%   81.8%              1991
 3: Nxd4               3: 11.1%  100.0%              1992
 4: g6                 1:  3.7%  100.0%              1980
 5: Qe7                1:  3.7%  100.0%              1957
__________________________________________________________
TOTAL:                27:100.0%   66.6%  2229  2187  1990

4.3 Positional Themes

Frequency of themes at move 17: 
   Same-side castling:             52%    Isolated Queen Pawn:            15%
   Opposite castling:               0%    White Pawn on 5/6/7th rank:      0%
   Both Kings uncastled:            0%    Black Pawn on 2/3/4th rank:     26%
   Kingside pawn storm:             0%    Open c/d/e file:                48%
   Queens exchanged:               11%    Only one side has Bishop pair:  78%

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     4%    11%     0%    22%     4%     4%     0%    56%
 All games        3%     9%     9%    25%     2%     4%     4%    44%

5. Theory Table

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 Bb4 7.O-O Bxc3 8.bxc3 Nxe4 9.Bd3 Nxc3 10.Qg4: +14 =8 -5 (18/27: 67%)
1011121314151617
1 Qg4
Nxd41 		Qxg72
Nde2+ 		Bxe23
Nxe2+ 		Kh1
Nxc1 		Qxh8+
Ke7 		Qxd8+
Kxd8 		Raxc1
b6 		f4
Bb74 		5: 100%
2 ...
OO 		Bb25
f5 		Nxf5
exf5 		Qc4+
d5 		Qxc3
d4 		Qc4+
Kh8 		Rfe1
Bd76 		Bxd4
Nxd47 		3: 50%
3 ...
... 		...
... 		...
... 		...
... 		...
... 		Qb3+
Kh8 		Rfe18
Bd7 		c3
f49 		3: 50%
4 ...
... 		Nxc6
dxc610 		Bb2
e511 		Qg3
Nd5 		Bxe5
f6 		Bd6
Re8 		c4
Nb612 		Rab1
Qd713 		5: 20%
5 ...
Qf6 		Nxc6
h5 		Qg3
bxc6 		Bg514
Qd4 		Rfe115
h4 		Qc7
OO 		Be3
Qf6 		Qd6
Nd516 		3: 50%
6 ...
... 		...
bxc6 		Bg5
Qe5 		Bf417
Qd418 		Qg3
Rg8 		Rae1
g6 		Be5
Qc5 		Qf4
Nd519 		4: 88%
7 ...
... 		...
dxc6 		Bg5
e520 		Qg3
Qe621 		Bd2
Nd5 		Qxg7
Qf6 		Qxf6
Nxf6 		Bc3
Nd522 		4: 100%
  1. 10...Qe7 11.Nxc6 bxc6 12.Qxg7 1-0 Hansen -- Hinrich, Denmark 1957.
    10...g6 11.Bb2 Ne5 12.Qg3 Nxd3 13.Bxc3 Nc5 14.Qe5 OO 15.Qg7+ Kxg7 16.Nf5+ Kg8 17.Nh6+ 1-0 Chiarelli -- Iannicca, Ohio Congress 1980.

  2. 11.Qxd4 Qf6 12.Qc5 b6 13.Qa3 Nd5 14.Bb2 Qg5 15.Be4 Bb7 16.c4 Ne3 17.Bxb7 Nxf1 18.Bxa8 1-0 Schlenker -- Trettin, Tuebingen Bp 1982.

  3. 12.Kh1 Rf8 13.Bh6 d6 14.Bxe2 Qc7 15.Rad1 Ne4 16.Rxd6 Nxf2+ 17.Rxf2 Qa5 18.Rd8+ Kxd8 1-0 Hansen 2075 -- Ostersen 1900, Sommer 1990.

  4. 18.f5 Ke7 1-0(46) Hasanov 2229 -- Roitman 1920, Herceg Novi SCG 2005.

  5. 11.Bh6 Qf6 12.Nxc6 Qxh6 13.Ne7+ Kh8 14.Rae1 Qf6 15.Bxh7 Nd5 16.Bg6 Qf4 17.Re4 Qxg4 18.Rxg4 Nxe7 =-=(19) Arzumanian 2437 -- Pilavov 2414, Alushta UKR 2001.

  6. 16...Qf6 17.c3 Ne5 18.Qxd4 Nxd3 =-=(24) Theissen 2240 -- Souleidis 2310, GER 1992.

  7. 18.Qxd4 Bc6 =-= Rudolf 2325 -- Thiel 2310, Solingen GER 1998.

  8. 16.Rad1 Qb6 17.Qa3 Be6 18.Rfe1 Bd5 =-=(30) Vouldis 2280 -- Mastrokoukos 2320, Athens GRE 1993.

  9. 18.cxd4 Qg5 =-=(30) Ponater -- Krempel, M/1325E corr 1989; =-=(30) Ponater -- Krempel, GER 1989.

  10. 11...bxc6 12.Bh6 Qf6 13.Bg5 Qe5 14.Rae1 f5 15.Qc4 Ne4 16.f3 Qc5+ 17.Qxc5 Nxc5 18.Be7 Nxd3 0-1(55) Pyhala 2350 -- Sammalvuo 2280, Helsinki FIN 1994; 14.Bf4 Qd4 15.Qg3 Ne4 16.Qf3 f5 17.Rab1 d5 18.h4 Qf6 0-1(43) Madeira de Ley -- Ribeiro, Rio de Janeiro BRA 1958.

  11. 12...f5 13.Qg3 Qd4 14.Rab1 Rd8 15.Rfe1 g6 16.Bf1 Ne4 17.Rxe4 Qxe4 18.Qc3 Rd7 1-0(23) Winiwarter 2170 -- Herzog 2380, St Veit 1996.

  12. 16...Ne7 17.Rad1 Be6 18.Rfe1 Qc8 0-1(35) Schindler -- Halbritter 2010, Bayern 2000.

  13. 18.c5 Nd5 0-1(63) Delchev 2480 -- Mastrokoukos 2385, Sofia BUL 1994.

  14. 13.Bd2 h4 14.Qg4 c5 15.Qc4 Nd5 16.Qxc5 h3 17.Rfe1 Bb7 18.Be4 hxg2 1-0(31) Rantanen 2460 -- Ivanovic 2460, Tallinn EST 1979.

  15. 14.Qc7 OO 15.Be3 Qf6 16.Qd6 Qd8 17.Qe5 Nd5 18.Bc5 Re8 =-=(26) Sorensen 2395 -- Zimmer 2250, Berlin GER 1993.

  16. 18.Bh7+ Kxh7 0-1(41) Perez Perez 2342 -- Rooms 2358, Cuba 2001.

  17. 13.Rae1 h5 14.Qh4 Qc5 15.Be3 Qe7 16.Qg3 Qf6 17.Bg5 Qd4 18.h4 OO 1-0(31) Degraeve 2490 -- Hagege 2175, France 1996.
    13.Rfe1 Qc5 14.Qg3 Nd5 15.c4 Nb4 16.Be3 Qf8 17.Be4 f5 18.Bb1 Qf6 =-=(29) Pokrupa 2095 -- Erdineeva 2255, Decin CZE 1998.

  18. 13...Qf6 14.Qg3 Nd5 15.Be5 Qe7 16.Bxg7 Rg8 17.Bxh7 Rxg7 18.Qxg7 Qf6 1-0(31) Zhukov 2215 -- Assmann 2003, Rowy POL 2000.

  19. 18.Qh4 h5 1-0(25) Cheparinov 2531 -- Rusev 2379, Plovdiv BUL 2003.

  20. 12...Qe5 13.Bf4 Qd4 14.Qg3 Rg8 15.Be5 Qc5 16.Rfe1 g6 17.Bf1 Nd5 18.c4 Nb6 1-0(28) Kupreichik -- Barenboim, Riga LAT 1968; 13.Rfe1 h5 14.Qh4 Qd6 15.Bf4 Qd4 16.Qg5 Qf6 17.Qg3 h4 18.Qg4 Qd4 1-0(20) Jaracz 2253 -- Kunicki 2026, Polanica Zdroj POL 2001.

  21. 13...Qd6 14.Bd2 Ne2+ 15.Bxe2 Qxd2 16.Qxg7 Rf8 17.Qxe5+ Be6 18.Rad1 Qxc2 1-0(24) Doe -- Kowalski, Canada 1961.

  22. 18.Bxe5 f6 1-0(45) Canfell 2260 -- Wilkinson, Suncoast AUS 1999.