E19j — Queen’s Indian: Old Main Line, 9.Qxc3 c5

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 c5 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte f4, case forte e5, case forte g5, paire de fous.
Faiblesses adverses : arriéré d7.
Problèmes : Bc1 enfermé, Bg2 enfermé.
Plans :
● Be3 — Développer Bc1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Bb7 actif, Be7 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : arriéré d7.
Plans :
● ...Nc6 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...d6 — Rupture
● ...d5 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E19j — Old Main Line

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 c5

Eval: [+0.41]

Les coups candidats

10.Rd1 — 69.6% (1942 parties) →

Ambassadeurs : Andersson, Ulf (23x), Karpov, Anatoly (20x), Weber, Karlheinz (19x), Da Silva Filho, Alcindo Luz Bastos (16x), Timman, Jan H (13x), Ilyasov, Anatoly Fedorovich (13x), Kýhos, Alois (12x), Langer, Raimund (12x)

10.b3 — 7.8% (217 parties) →

Ambassadeurs : Ivkov, Borislav (9x), Ribli, Zoltan (8x), Andersson, Ulf (7x), Portisch, Lajos (6x), Beliavsky, Alexander G (5x), Gheorghiu, Florin (4x), Almasi, Zoltan (3x), Ftacnik, Lubomir (3x)

10.dxc5 — 7.1% (199 parties)

Ambassadeurs : Najdorf, Miguel (3x), Goglidze, Viktor (1x), Lisitsin, Georgy (1x), Pirc, Vasja (1x), Lilienthal, Andor (1x), Monticelli, Mario (1x), Monticelli D Elias, Maria Lucia (1x), Szapiro, Marek (1x)

10.Bf4 — 6.7% (187 parties)

Ambassadeurs : Bares, Jirí (5x), Portych, Václav (4x), Chitescu, Ioan (4x), Voronin, Alexandr (3x), Otspere, Urmas (3x), Kýhos, Alois (3x), Anikaev, Yuri N (2x), Jones, Brian (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Rd1	10.b3	10.dxc5	10.Bf4
<1800	46	67%	4%	11%	7%
1800-2200	872	69%	5%	8%	9%
2200-2600	1325	70%	10%	6%	6%
2600+	92	75%	21%	1%	2%

Évolution par décennie (% des parties)

Décennie	N parties	10.Rd1	10.b3	10.dxc5	10.Bf4
1930s	18	28%	—	28%	11%
1940s	6	83%	—	17%	—
1950s	1	—	—	100%	—
1960s	33	52%	12%	6%	3%
1970s	199	69%	12%	6%	2%
1980s	207	66%	15%	5%	2%
1990s	319	58%	13%	12%	4%
2000s	655	76%	6%	7%	3%
2010s	1227	71%	6%	6%	11%
2020s	127	69%	8%	10%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Rd1	71%	69%	▼ -1.9%
10.b3	6%	8%	▲ +2.3%
10.dxc5	6%	10%	▲ +4.7%
10.Bf4	11%	5%	▼ -6.6%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 10 parties
Karpov, Aleksandr — 10 parties
Tal, Mikhail — 7 parties
Smyslov, Vladimir — 5 parties
Anand, Viswanathan — 3 parties
Euwe, Max — 1 partie
Kramnik, Vladimir — 1 partie
Hou, Yifan — 1 partie

Parties historiques

10.Rd1 — 69.6% (1942 parties)

1936 — Vidmar, Marjeta vs Eliskases, Erich — 1/2-1/2 — Hastings ENG
1937 — De Groot, Adriaan vs Ojanen, Kaarle S — 1/2-1/2 — Stockholm SWE
1937 — Bernstein, Sidney vs Marshall Viele, Fabrizio Aaron — 0-1 — New York, NY USA
1937 — Bogoljubow, Efim vs Saemisch, Friedrich — 1-0 — Bad Nauheim
1939 — Engels, Ludwig vs Eliskases, Erich — 1/2-1/2 — Bad Oeynhausen ch-GER

10.b3 — 7.8% (217 parties)

1966 — Toran, Roman vs Tal, Michael — 1/2-1/2 — Palma de Majorca ESP
1966 — Pomar Salamanca, Arturo vs Spassky, Boris Vasily — 1/2-1/2 — Havana CUB
1966 — Meza Pomar, Aroa vs Portisch, Lajos — 1/2-1/2 — Havana CUB
1968 — Sapi, Laszlo vs Lengyel, Agnes — 1/2-1/2 — HUN
1970 — Ivkov, Borislav vs Gheorghiu, Florin — 1/2-1/2 — Budapest HUN

10.dxc5 — 7.1% (199 parties)

1935 — Monticelli, Mario vs Najdorf, Miguel — 0-1 — Warsaw ol ;HCL 36
1935 — Monticelli D Elias, Maria Lucia vs Najdorf, Miguel — 0-1 — Warsaw POL
1937 — Goglidze, Viktor vs Lisitsin, Georgy — 1/2-1/2 — Ch URS Tbilisi GEO
1937 — Pirc, Vasja vs Lilienthal, Andor — 1/2-1/2 — Stockholm SWE
1939 — Lauberte, Milda vs De Vigil, MA. — 1/2-1/2 — Buenos Aires ARG

10.Bf4 — 6.7% (187 parties)

1937 — Baad Schmidt, Noah vs Najdorf, Rafael — 0-1 — Stockholm SWE
1938 — Petrov, Vladimir S. vs Saemisch, Friedrich — 1/2-1/2 — Bad Harzburg
1969 — Faibisovich, Vadim Z vs Anikaev, Yuri N — 0-1 — Vilnius LTU
1970 — Naranja, Renato vs Johannessen, Simon T — 0-1 — Siegen olm
1976 — Giorgadze, Tamaz vs Anikaev, Yuri N — 1-0 — Tbilisi GEO

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● d7
Chaînes	● f2→g3, h2→g3	● b6→c5, a7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Bb7		● Bb7 Actif (mob. 6)
Be7		● Be7 Actif (mob. 4)
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	semi-ouvert
Ruptures	● d4-d5, ● e2-e3	● …d7-d6, ● …d7-d5, ● …e6-e5, ● …f7-f6, ● …f7-f5

Partie
1934 Ujpest – Round 1 – Frydman, Paulino – 0-1 – Eliskases, Erich – G53 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 c5 10. Be3 Nc6
1935 Lodz – Round 3 – Appel, Izaak – 0-1 – Steiner, Lajos – G4 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 c5 10. Qc2 Qc8
1935 Warsaw olm – Round 14 – Monticelli D Elias, Maria Lucia – 0-1 – Najdorf, Miguel – 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 c5 10. dxc5 bxc5
1935 Warsaw POL – Round 2 – Opocensky, Karel – 0-1 – Lilienthal, Andor – G12 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 c5 10. Be3 Nc6
1937 Stockholm ol (Men) – Round 4 – Grau, Roberto G – 1-0 – Szabo, Laszlo – G10 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 c5 10. Be3 cxd4
1937 Stockholm SWE – Round 2 – Pirc, Vasja – 1/2-1/2 – Lilienthal, Andor – G9 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 c5 10. dxc5 bxc5
1938 Bad Harzburg – Round 1 – Petrov, Vladimir S. – 1/2-1/2 – Saemisch, Friedrich – G2 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O c5 10. Bf4 d6
1939 Buenos Aires Circulo – Round ? – Palau, Luis – 1/2-1/2 – Luckis, Marcos – G52 1. d4 Nf6 2. Nf3 b6 3. g3 e6 4. Bg2 Bb7 5. c4 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O c5 10. Qc2 Qc8
1946 POL Ch – Round 18 – Szapiro, Marek – 1-0 – Plater, Kazimierz – G105 1. d4 Nf6 2. Nf3 b6 3. c4 Bb7 4. g3 e6 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. dxc5 bxc5
1952 Helsinki olm – Round 1 – Litmanowicz, Wladyslaw – 1/2-1/2 – Cobo Arteaga, Eldis – G82 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. g3 Be7 6. Bg2 O-O 7. O-O Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. dxc5 bxc5
1961 Moscow Ch – Round ? – Simagin, Vladimir – 1/2-1/2 – Shamkovich, Leonid – 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 c5 10. Be3 d6
1962 Paris FRA – Round ? – Huguet, Bernard – 0-1 – Conan, Claude – G1 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O c5 10. Qc2 Nc6
1963 Paris FRA – Round 2 – Huguet, Bernard – 1/2-1/2 – Conan, Claude – G3 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 O-O 7. O-O Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. dxc5 bxc5
1964 Belgrade – Round 7 – Bronstein, David I – 1/2-1/2 – Spassky, Boris Vasily – G51 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 c5 10. Be3 d6
1964 Liberation – Round 7 – Bronstein, David I – 1/2-1/2 – Spassky, Boris V. – G18 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 c5 10. Be3 d6
1965 Capablanca Memorial – Round 2 – Kholmov, Ratmir D – 1/2-1/2 – Parma, Bruno – G20 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 c5 10. Be3 d6
1969 Venice – Round 4 – Ivkov, Borislav – 1/2-1/2 – Lengyel, Levente – G25 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 c5 10. Be3 d6
1969 Vilnius – Round 1 – Faibisovich, Vadim Z – 0-1 – Anikaev, Yuri N – G10 1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. c4 O-O 7. Nc3 Ne4 8. Qd3 Nxc3 9. Qxc3 c5 10. Bf4 cxd4
1975 Portoroz/Ljubljana – Round 13 – Osterman, Rudolf – 1/2-1/2 – Parma, Bruno – G42 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O c5 10. Be3 d6

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