Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, c3→d4	● a6→b5, d6→e5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1), ● g5 (2v0)	● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (3v2), ● d5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bb3	● Bb3 Actif (mob. 6)
Be7		● Be7 Ok (mob. 0)
Bc8		● Bc8 Non développé (mob. 6)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn f7
Non développées	3 (● b1, ● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c3-c4	● …d6-d5

C91a — Spanish: Closed, 9.d4

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.d4 ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Be3 (Fou actif (mobilité 5), Développer c1 — 48 % des parties) ; d5 (Occuper le centre — 36 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bg4 (Fou actif (mobilité 7), Développer c8 — 90 % des parties) ; ...Bb7 (Développer c8 — 3 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1905 Ostende – Round 13 – Teichmann, Radek – 1/2-1/2 – D Marco, Gianni – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Re1 Be7 7. c3 O-O 8. d4 b5 9. Bb3 Bd7 10. Nbd2 Ne8
1910 Buenos Aires sim – Round ? – Lasker, Emanuel – 1/2-1/2 – Nollmann, Jorge – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Re1 Be7 7. c3 O-O 8. d4 b5 9. Bb3 Na5 10. Bc2 Bg4
1922 London – Round 4 – Yates, Frederic D – 1-0 – Bogoljubow, Efim – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 exd4 10. cxd4 Bg4
1922 London ENG – Round ? – Capablanca, Jose – 1-0 – Bogoljubow, Efim – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 exd4 10. cxd4 Bg4
1923 Trieste – Round 11 – Yates, Frederic D – 1-0 – Asztalos, Lajos – G51 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 exd4 10. cxd4 Bg4
1924 NED-ch05 – Round 2 – Olland, Adolf George – 1/2-1/2 – Euwe, Max – G1 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 exd4 10. cxd4 Bg4
1926 Birmingham – Round 4 – Price, Hubert E – 1-0 – Znosko-Borovsky, Eugene – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. d4 exd4 10. cxd4 Bg4
1926 USA sim – Round ? – Lasker, Emanuel – 0-1 – Croney, TM. – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. Re1 a6 6. Ba4 b5 7. Bb3 Be7 8. c3 O-O 9. d4 exd4 10. cxd4 Bg4
1928 Haag olm – Round ? – Rivier, William – 1-0 – Stoltz, Gösta – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 exd4 10. Nxd4 Nxd4
1930 Frankfurt – Round 7 – Ahues, Carl – 1-0 – Mannheimer, Nathan – G38 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 O-O 7. c3 d6 8. Re1 b5 9. Bb3 Rb8 10. h3 Nd7
1941 Trencianske Teplice – Round 1 – Potucek, Ludovit – 1-0 – Opocensky, Karel – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 exd4 10. cxd4 Bg4
1946 ARG-ESP radio m – Round 1 – Medina-Garcia, Antonio – 1-0 – Rossetto, Hector – G3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. c3 Be7 7. d4 O-O 8. Re1 b5 9. Bb3 Na5 10. Bc2 Bg4
1946 Bad Harzburg – Round 1 – Torber, Claus – 0-1 – Ahues, Carl – G21 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 exd4 10. Nxd4 Bb7
1946 Leningrad-Prague – Round 2 – Rovner, Dmitry – 1/2-1/2 – Rohacek, Ivan – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 exd4 10. cxd4 d5
1952 Hungary Ch – Round 17 – Szily, Jozsef – 1-0 – Negyesy, Gyorgy – G104 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 exd4 10. cxd4 Bg4
1955 CSR Ch – Round 9 – Florian, Jaromir – 1/2-1/2 – Ivanco, Imrich – G71 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 exd4 10. cxd4 Bg4
1956 URS Ch sf – Round ? – Rovner, Dmitry – 0-1 – Novotelnov, Nikolai – G110 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Nd7 10. Nbd2 Bf6
1959 Buenos Aires VC – Round 11 – Acosta Garcia, Rafael Isaac – 1-0 – Tanner, Philippe – G39 1. Nf3 Nc6 2. e4 e5 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d4 d6 9. c3 exd4 10. cxd4 Bg4
1959 BUL Ch – Round 1 – Karastoichev, Emil – 0-1 – Kostov, Petko – G1 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d4 d6 9. c3 Bb7 10. Nbd2 Nd7
1959 York ch-BCF – Round 1 – Littlewood, John E – 1-0 – Hilton, CG. – G18 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 Nd7 10. Nbd2 Bf6
1962 Varna olm – Round 9 – Zwaig, Arne – 0-1 – Ali, Farooq – G411 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. c3 O-O 9. d4 exd4 10. cxd4 Bg4
1963 Buenos Aires ch-ARG – Round 10 – Schweber, Samuel – 1-0 – Alcaraz Suarez, Juan Camilo – G57 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Nd7 10. Nbd2 Bf6
1963 Fortaleza zt – Round 8 – Garcia Rodriguez, Raimundo – 1-0 – Mendivil Salinas, Ismael – G43 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Na5 10. dxe5 dxe5
1964 Bordeaux Open Bordeaux FRA – Round 9 – Mazzoni, Guy – 1-0 – Chaude de Silans, Chantal – G62 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 Bb7 10. Nbd2 Nd7
1964 Kecskemet zt – Round 1 – Gheorghiu, Florin – 1/2-1/2 – Prameshuber, Alexander – G70 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 exd4 10. Nxd4 Na5
1965 DDR Ch 15th – Round 11 – Schoeneberg, Manfred – 1/2-1/2 – Zinn, Lothar – G50 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 exd4 10. cxd4 Bg4
1965 It Zinnowitz GER – Round 9 – Hennings, Artur – 0-1 – Lein, Anatoly – G22 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 b5 7. Bb3 d6 8. c3 O-O 9. Re1 h6 10. d5 Na5
1968 Cardenas/Matanzas/Santa Clara – Round 5 – Garcia Martinez, Silvino – 1-0 – Letelier Martner, Rene – G27 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d4 d6 9. c3 Bb7 10. Nbd2 h6
1968 Clare Benedict Cup 15th – Round 3 – Seuss, Oswald – 0-1 – Basman, Michael J – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bb7 10. Nbd2 exd4
1969 Stary Smokovec – Round 1 – Lehmann, Heinz – 1/2-1/2 – Jankovec, Ivan – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 exd4 10. cxd4 Bg4

C91a — Closed (1905)

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.d4

Les coups candidats

9…Bg4 — 89.6% (9536 parties) →

Ambassadeurs : Van Riemsdijk, Herman C. (81x), Beliavsky, Alexander G (25x), Nijboer, Friso (24x), Tseshkovsky, Vitaly (23x), Van der Wiel, John T.H. (21x), Ostojic, Predrag (20x), Prokopp, Heinz (19x), Negi, Parimarjan (19x)

9…Bb7 — 3.3% (354 parties)

Ambassadeurs : Mahmood Lodhi (6x), Bernard, Ryszard (3x), Hansen, Berno (3x), Pena, Alfredo (3x), Trois, Francisco R.T. (2x), Lorenzo Duran, Marcos (2x), Voronin, Alexandr (2x), Atri, Jamshid (2x)

9…exd4 — 3.3% (348 parties)

Ambassadeurs : Perdomo, Leandro (4x), Harandi, Khosro (2x), Fucek, Claudio (2x), Fernandez, Daniel Howard (2x), Silva Rodriguez, Fernando (2x), Wallner, Joachim (2x), Stevanic, David (2x), Burrows, Martin P (2x)

9…Re8 — 1.4% (146 parties)

Ambassadeurs : Lefebr, Vladislav (5x), Poranen, Timo (3x), Maaki, Franti (3x), Akst, Ilia (3x), Turgut, Tansel (3x), Loncarevic, Robert (3x), Blit, Jacques (3x), Ginzburg, Maximiliano (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Bg4	9…Bb7	9…exd4	9…Re8
<1800	533	79%	6%	8%	2%
1800-2200	3235	86%	4%	4%	2%
2200-2600	4791	93%	2%	2%	1%
2600+	295	98%	1%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…Bg4	9…Bb7	9…exd4	9…Re8
1950s	160	92%	1%	3%	1%
1960s	348	94%	1%	2%	0%
1970s	574	93%	2%	2%	0%
1980s	804	94%	3%	1%	1%
1990s	1278	87%	5%	3%	2%
2000s	2950	88%	4%	4%	2%
2010s	3875	91%	3%	3%	1%
2020s	651	87%	3%	5%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Bg4	91%	87%	▼ -3.7%
9…Bb7	3%	3%	+0.5%
9…exd4	3%	5%	▲ +1.4%
9…Re8	1%	2%	▲ +1.5%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Carlsen, Magnus — 10 parties
Karpov, Anatoly — 7 parties
Ding, Liren — 6 parties
Kasparov, Garry — 3 parties
Anand, Viswanathan — 3 parties
Hou, Yifan — 2 parties
Kramnik, Vladimir — 1 partie

Parties historiques

9…Bg4 — 89.6% (9536 parties)

1950 — Hess, Ralf E. vs Burghold, C. — 1/2-1/2 — Lucerne SUI
1950 — Bronstein, David I vs Keres, Paul — 1-0 — Budapest HUN
1950 — Petrosian, Tigran V. vs Zagoriansky, Evgeny — 1/2-1/2 — Moscow ch
1950 — Bronstein, Anna vs Keres, Paul Petrovich — 1-0 — Budapest HUN
1950 — Karastoichev, Emil vs Bobotsov, Milko G — 1-0 — Sofia BUL

9…Bb7 — 3.3% (354 parties)

1957 — Padevsky, Nikola vs Filchev, Rusko — 1/2-1/2 — Sofia BUL
1959 — Karastoichev, Emil vs Kostov, Petko — 0-1 — Sofia BUL
1964 — Mazzoni, Guy vs Chaude de Silans, Chantal — 1-0 — Bordeaux op Bordeaux FRA
1964 — Josefsson, Kenneth vs Plato, Bo — 1-0 — Sweden
1968 — Seuss, Oswald vs Basman, Michael J — 0-1 — Bad Aibling GER

9…exd4 — 3.3% (348 parties)

1952 — Szily, Jozsef vs Negyesy, Gyorgy — 1-0 — Hungary ch
1954 — Alenius, Bengt vs Asmundsson, Ingvar — 1-0 — Oslo NOR
1955 — Florian, Jaromir vs Ivan, Imrich — 1/2-1/2 — Prague CZE
1957 — Martius, Ottokar vs Gronau, Paul — 1-0 — Hamburg GER
1959 — Garcia R., Luis Ernesto vs Tanner, Pedro — 1-0 — Buenos Aires ARG

9…Re8 — 1.4% (146 parties)

1958 — Westerinen, Heikki M.J. vs Maki Uuro, Miika — 1/2-1/2 — Mantta FIN
1969 — Parma, Bruno vs Stupica, Janez — 1/2-1/2 — JUG-24ch Novi Travnik
1972 — Ciric, Dragoljub M vs Mujagic, Ramo — 1/2-1/2 — Novi Sad SRB
1987 — Werner, Clemens vs Sonntag, Hans-Hubert — 1/2-1/2 — BL
1987 — Werner, Clemens vs Sonntag, Hans-Hubert — 1/2-1/2 — BL

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