Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● a7→b6, c7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v0), ● g5 (2v1)	—
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Ok (mob. 2)
Bb7		● Bb7 Actif (mob. 6)
Be7		● Be7 Actif (mob. 7)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	2 (● b8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● c4-c5, ● d4-d5	● …c7-c5, ● …d7-d5, ● …e6-e5

E19a — Queen’s Indian: Old Main Line, 9.Qxc3

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.Qxc3 ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu au centre (rupture c4-c5).

Atouts. Les Blancs s'appuient sur un contrôle dominant de f4, e5 et g5.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. b3 (Préparer le fianchetto — 34 % des parties) ; Rd1 (26 % des parties) ; Ne1 (8 % des parties) ; Qc2 (Dame très active (15 cases) — 6 % des parties) ; Bf4 (Fou actif (mobilité 8), Développer c1 — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Attaque sur l'aile roi (...f5 dans 39 % des parties).

Atouts. Les Noirs s'appuient sur des fous actifs en b7 et e7.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8 et la tour a8).

Plans. ...f5 (Attaque à l'aile roi — 39 % des parties) ; ...c5 (Frapper le centre adverse — 26 % des parties) ; ...Be4 (Fou actif (mobilité 9) — 14 % des parties) ; ...d6 (Poussée — 13 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1926 Semmering – Round 1 – Gilg, Karl – 1/2-1/2 – Acebey Michel, Veroska – G34 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qd3 Nxc3 9. Qxc3 Na6 10. a3 c5
1934 Leningrad ch-URS – Round 1 – Yudovich, Mikhail M – 1-0 – Kan, Ilya A – G90 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Bf6 10. Qc2 Nc6
1937 Stockholm ol – Round 5 – Reshevsky, Samuel – 1-0 – Lilienthal, Georg – G28 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Rd1 d5
1937 Tbilisi ch-URS – Round 1 – Goglidze, Viktor – 1-0 – Chekhover, Vitaly – G64 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Bf6 10. Qc2 Nc6
1941 Mar del Plata – Round 11 – Sulik, Franciszek – 1/2-1/2 – Najdorf, Miguel – G92 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O Qc8 10. Rd1 Be4
1941 Munchen – Round 6 – Lundin, Erik – 1/2-1/2 – Rabar, Bakhtyar Hamasaleh – G53 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. d4 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O Bf6 10. Qc2 d5
1943 Prague – Round 1 – Alekhine, Alexander – 1/2-1/2 – Fichtl, Jiri – G2 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Bf6 10. Bf4 d6
1946 Verenigde Staten m ch-USA – Round 3 – Steiner, Heinrich Jun. – 1/2-1/2 – Denker, Arnold S – G3 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. c4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Bf4 d6
1947 Vienna SCHLECHTER-mem – Round 13 – Gruenfeld, Ernst – 1/2-1/2 – Opocensky, Karel – G28 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Bf4 d6
1950 Dubrovnik olm – Round 12 – Steiner, Heinrich Jun. – 0-1 – Rossolimo, Nicolas – G77 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Rd1 d5
1950 Dubrovnik olm – Round 9 – Aguilar Flores, Renata Camila – 1/2-1/2 – Rossolimo, Nicolas – G124 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Ne1 Bxg2
1950 Dubrovnik YUG – Round 1 – Enevoldsen, Harald – 0-1 – Rossolimo, Nicolas – G2 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. c4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Bf4 d6
1950 Hungary – Round 1 – Gereben, Erno – 1-0 – Pogats, Jozsef Jr. – G38 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. c4 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O Qc8 10. Bf4 Be4
1951 Madrid – Round 1 – Giustolisi, Alberto – 1/2-1/2 – Enevoldsen, Jens – G4 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. c4 Be7 6. Nc3 O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Bf4 d6
1952 Budapest – Round 6 – Platz, Hans – 0-1 – Stahlberg, Gideon – G56 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 d5 10. Ne5 c6
1952 Budapest HUN – Round 7 – Szabo, Ladislav – 1-0 – Platz, Hans – G4 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 e6 5. d4 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 d5 10. cxd5 exd5
1952 Hoogovens – Round 7 – Bouwmeester, Hans – 0-1 – Kramer, Hanspeter – G35 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Qd3 f5
1952 Rio de Janeiro – Round 1 – Eidelman Mauricio – 1/2-1/2 – Mangini, Jose Henrique de Mello – G1 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Rd1 d6
1953 Wch U20 qual – Round 4 – Ivkov, Borislav – 1/2-1/2 – Darga, Klaus – G13 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 d5 10. Ne5 c6
1954 Belgrade – Round 14 – Porrecca, Giorgio – 1/2-1/2 – Djurasevic, Bozidar – G117 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Na6 10. b3 c5
1954 Olympiad prel IV – Round 1 – Golombek, Harry – 1/2-1/2 – Darga, Klaus – G13 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 O-O 7. O-O Ne4 8. Qc2 Nxc3 9. Qxc3 d5 10. Bf4 c6
1955 Hamburg – Round 13 – Stahlberg, Gideon – 1-0 – Pfeiffer, Gerhard – G101 1. Nf3 e6 2. c4 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Rd1 d5
1956 Alekhine Memorial – Round 1 – Pachman, Ludek – 1/2-1/2 – Smyslov, Vladimir – G21 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. b3 d6
1956 Hastings5657 – Round 9 – Larsen, Bent Ravn – 1/2-1/2 – O'Kelly, Albéric de Galway – G43 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 e6 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Bf4 d6
1956 URS Ch sf – Round ? – Osnos, Viatcheslav – 1/2-1/2 – Khasin, Abram – G55 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. b3 Be4
1957 CSR Ch – Round 16 – Filip, Miroslav – 1/2-1/2 – Pachman, Ludek – G70 1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. b3 d6
1957 Sofia zt Sofia BUL – Round 1 – Filip, Miroslav – 1/2-1/2 – Szilagyi, Gyorgy Laszlo – G27 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. b3 f5
1957 WchT U26 04th – Round 7.2 – Minev, Nikolay N – 1-0 – Portisch, Lajos – G92 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. b3 d6
1958 Argentina – Round 5 – Espinosa Flores, Rafael Emilio – 1-0 – Luckis, Marcos – G39 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Rd1 d5
1960 Moscow CCCT – Round 5 – Kholmov, Ratmir D – 1/2-1/2 – Simagin, Vladimir – G30 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. c4 Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Bf6 10. Qc2 Bxf3
1962 Sarajevo – Round 6 – Ivkov, Borislav – 1/2-1/2 – Darga, Klaus – G36 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Rd1 d5
1963 Sochi – Round 9 – Bukic, Enver – 1/2-1/2 – Kholmov, Ratmir D – G54 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 a5 10. Ne1 Bxg2
1964 Mar del Plata – Round 6 – Amado, Claudio – 1/2-1/2 – Luckis, Marcos – G21 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Rd1 d5
1968 Hoogovens – Round 4 – Ivkov, Borislav – 0-1 – Korchnoi, Viktor – G42 1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. Rd1 d5
1968 It Buesum GER – Round 11 – Kolarov, Atanas S. – 1/2-1/2 – O'Kelly de Galway, Alberic – G51 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Qc8 10. b3 d6
1972 Skopje ol (Men) fin-A – Round 3 – Lombard, Andre – 0-1 – Pomar Salamanca, Arturo – G96 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 Bf6 10. Qc2 Nc6
36. Olympiad 2004 – Round 7 – Timman, Jan H – 1/2-1/2 – Speelman, Jon S – G233 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Bf6 10. Rd1 d6
Melody Amber, Blindfold, Monaco 1995 – Round 2 – Nikolic, Predrag – 1/2-1/2 – Ivanchuk, Vasyl – G7 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Bf6 10. Qc2 d5

E19a — Classical Variation, Traditional Variation, Main Line (1926)

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.Qxc3

Les coups candidats

9…c5 — 41.8% (2794 parties) →

Ambassadeurs : Karpov, Anatoly (34x), Andersson, Ulf (33x), Weber, Karlheinz (19x), Ivkov, Borislav (16x), Portych, Václav (16x), Kýhos, Alois (16x), Ilyasov, Anatoly Fedorovich (16x), Timman, Jan H (15x)

9…f5 — 27.4% (1832 parties) →

Ambassadeurs : Ivkov, Borislav (12x), Pirc, Vasja (11x), Almarza Mato, Carlos (10x), Korchnoi, Viktor (9x), Rozentalis, Eduardas (9x), Averbakh, Yuri L (7x), Kholmov, Ratmir D (7x), Blatny, Frantisek (6x)

9…d6 — 14.6% (978 parties) →

Ambassadeurs : Ivkov, Borislav (12x), Miguel, Nahuel (7x), Blatny, Frantisek (6x), Smyslov, Vasily (5x), Gheorghiu, Florin (5x), Ilyasov, Anatoly Fedorovich (5x), Matanovic, Aleksandar (4x), Cobo Arteaga, Eldis (4x)

9…Be4 — 9.1% (605 parties) →

Ambassadeurs : Miguel, Nahuel (9x), Szabo, Laszlo (7x), Matanovic, Aleksandar (7x), Keres, Paul Petrovich (5x), Sarosy, Zoltan L (5x), Letelier Martner, Rene (5x), Anay Barche (4x), Beliavsky, Alexander G (4x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…c5	9…f5	9…d6	9…Be4
<1800	258	46%	28%	12%	7%
1800-2200	2554	41%	27%	17%	7%
2200-2600	2560	46%	23%	15%	10%
2600+	125	63%	12%	10%	10%

Évolution par décennie (% des parties)

Décennie	N parties	9…c5	9…f5	9…d6	9…Be4
1950s	242	0%	50%	14%	24%
1960s	233	14%	46%	18%	17%
1970s	428	47%	24%	12%	13%
1980s	480	43%	36%	9%	7%
1990s	849	38%	34%	11%	9%
2000s	1477	45%	27%	13%	9%
2010s	2476	50%	22%	14%	7%
2020s	493	29%	16%	37%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…c5	50%	29%	▼ -20.5%
9…f5	22%	16%	▼ -6.4%
9…d6	14%	37%	▲ +23.6%
9…Be4	7%	8%	▲ +0.6%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Anand, Viswanathan — 3 parties
Botvinnik, Mikhail — 2 parties
Kramnik, Vladimir — 2 parties
Hou, Yifan — 2 parties
Smyslov, Vladimir — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

9…c5 — 41.8% (2794 parties)

1952 — Litmanowicz, Wladyslaw vs Cobo Arteaga, Eldis — 1/2-1/2 — Helsinki olm
1961 — Simagin, Vladimir vs Shamkovich, Leonid — 1/2-1/2 — Moscow RUS
1961 — Espinosa Flores, Rafael Emilio vs Kamenetsky — 1-0 — Buenos Aires ARG
1962 — Huguet, Bernard vs Conan, Claude — 0-1 — ?
1962 — Pomar Salamanca, Arturo vs Jimenez Alastre Jorge Ernesto — 1/2-1/2 — Varna olm

9…f5 — 27.4% (1832 parties)

1950 — Pfeiffer, Gerhard vs Sahlmann, Walter — 1/2-1/2 — FRG-ch Bad Pyrmont GER
1950 — Trifunovic, Petar vs Rossolimo, Nicolas — 1/2-1/2 — Mar del Plata ARG
1950 — Sokolsky, Alexey vs Boleslavsky, Isaac — 1/2-1/2 — Moskou ch-URS
1950 — Heymann, Samuel vs Pfeiffer, Gerhard — 0-1 — FRG-ch Bad Pyrmont GER
1950 — Rellstab, Ludwig vs Pfeiffer, Gerhard — 1/2-1/2 — Bled SLO

9…d6 — 14.6% (978 parties)

1950 — Porreca, Giorgio vs Ojanen, Kaarle S — 1/2-1/2 — Dubrovnik olm
1950 — Mueller, Claus vs Otto, Arnold — 1/2-1/2 — Soemmerda
1951 — Maderna, Carlos vs Mangini, Jose Henrique de Mello — 1/2-1/2 — Mar del Plata ARG
1951 — Nielsen, Julius vs Nielsen, Poul Erik — 1/2-1/2 — ?
1951 — Mueller, Hans vs Hoenlinger, Baldur — 1/2-1/2 — Vienna AUT

9…Be4 — 9.1% (605 parties)

1950 — Miguel, Nahuel vs Kottnauer, Cenek — 1-0 — Amsterdam NED
1950 — Koberl, Ferenc vs Pogats, Jozsef Jr. — 1/2-1/2 — Schiavno Zdroj
1950 — Henneberke, Frans vs Matanovic, Aleksandar — 0-1 — ?
1950 — Szabo, Laszlo vs Al Balushi, Shuaib Abdul Wahab — 1/2-1/2 — Szcawno Zdroj
1950 — Szabo, Laszlo vs Al Balushi, Shuaib Abdul Wahab — 1/2-1/2 — Szczawno Zdroj POL

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