E19o — Queen’s Indian: Old Main Line, 9.Qxc3 c5 10.Rd1 d6 11.b3 Bf6

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.Rd1 d6 11.b3 Bf6 12.Bb2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu au centre (rupture d4-d5).

Atouts. Les Blancs s'appuient sur la paire de fous.

Plans. h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu au centre (rupture d6-d5).

Atouts. Les Noirs s'appuient sur des fous actifs en f6 et b7 et la paire de fous.

Côté adverse. Le fou enfermé en b2.

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

Plans. ...Nbd7 (Développer Nb8) ; ...d5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● b6→c5, d6→c5, a7→b6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	● d4	—
Centre	● d4 (3v2)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bb2	● Bb2 Enfermé (mob. 2)
Bg2	● Bg2 Ok (mob. 3)
Bf6		● Bf6 Actif (mob. 5)
Bb7		● Bb7 Actif (mob. 6)
Paire de fous	● Oui	● Oui
Non développées	1 (● 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	● …d6-d5, ● …e6-e5

Partie
1967 Moscow – Round 1 – Pachman, Ludek – 1/2-1/2 – Gheorghiu, Florin – 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 d6 10. b3 c5
Bugojno 1984 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Tal, Mikhail – G56 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Corus A 2008 – Round 12 – Van Wely, Loek – 1/2-1/2 – Anand, Viswanathan – G79 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. Rd1 d6
Interpolis 1981 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Petrosian, Tigran V – G6 1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. Nc3 O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Interpolis 1981 – Round 1 – Petrosian, Tigran V. – 1/2-1/2 – Portisch, Lajos – G22 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. Rd1 d6
Leningrad ch-URS 1977 – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Smyslov, Vassily – G34 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 c5 10. Rd1 d6
Linares 1983 – Round ? – Andersson, Ulf 1949 – 1/2-1/2 – Karpov, Anatoly – G31 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Linares 1992 – Round 9 – Karpov, Anatoly – 1/2-1/2 – Ivanchuk, Vasyl – G33 1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. g3 Be7 5. Bg2 Bb7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
London P&D/GLC Kings 1984 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Karpov, Anatoly – G9 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 c5 10. Rd1 d6
Moscow 1981 – Round ? – Petrosian, Tigran V – 1/2-1/2 – Balashov, Yuri S – G45 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. Rd1 d6
Moscow-4teams 1981 – Round 1 – Geller, Efim P – 1/2-1/2 – Makarichev, Sergey – G4 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 c5 10. Rd1 d6
Phillips&Drew 1982 – Round ? – Andersson, Ulf 1949 – 1/2-1/2 – Karpov, Anatoly – G63 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Turin 1982 – Round 8 – Andersson, Ulf 1949 – 1/2-1/2 – Karpov, Anatoly – G3 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
URS Spartakiad 1979 – Round 5 – Petrosian, Tigran V – 1/2-1/2 – Karpov, Anatoly – G24 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. Rd1 d6
USR - Wereld 1984 – Round 2.1 – Andersson, Ulf 1949 – 1/2-1/2 – Karpov, Anatoly – G5 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 c5 10. Rd1 d6

E19o — 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 10.Rd1 d6 11.b3 Bf6 12.Bb2

Eval: [+0.27]

Les coups candidats

12…Qe7 — 66.2% (627 parties) →

Ambassadeurs : Timman, Jan H (11x), Kýhos, Alois (10x), Ilyasov, Anatoly Fedorovich (9x), Weber, Karlheinz (7x), Langer, Raimund (7x), Kratochvíl, Václav (7x), Pérez López, Alberto (6x), Vaganian, Rafael A (5x)

12…Nd7 — 16.7% (158 parties)

Ambassadeurs : Andersson, Ulf (6x), Karpov, Anatoly (5x), Simal Moreira, Leonardo (4x), Siigur, Jüri (4x), Noble, Mark Frederick (3x), Jordaan, Wayne (3x), Portych, Václav (3x), Willmann, Bernd (3x)

12…Qc7 — 11.2% (106 parties)

Ambassadeurs : Karpov, Anatoly (8x), Andersson, Ulf (5x), Balashov, Yuri (3x), Da Silva Filho, Alcindo Luz Bastos (3x), Petrosian, Tigran V. (2x), Bagirov, Vladimir (2x), De Blois Figueredo, Adria (2x), Portisch, Lajos (2x)

12…Nc6 — 5.0% (47 parties)

Ambassadeurs : Tarjan, James (2x), Inkiov, Ventzislav (2x), Pachman, Ludek (1x), Gheorghiu, Florin (1x), Snyder, Robert M (1x), Adamski, Jan (1x), Andruet, Gilles (1x), Pomard, Didier (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12…Qe7	12…Nd7	12…Qc7	12…Nc6
<1800	13	54%	15%	15%	15%
1800-2200	309	65%	19%	10%	4%
2200-2600	443	70%	16%	9%	5%
2600+	42	45%	21%	26%	7%

Évolution par décennie (% des parties)

Décennie	N parties	12…Qe7	12…Nd7	12…Qc7	12…Nc6
1960s	4	50%	—	—	25%
1970s	53	81%	2%	6%	9%
1980s	63	48%	19%	29%	5%
1990s	88	47%	19%	28%	5%
2000s	217	54%	20%	16%	8%
2010s	484	75%	17%	5%	3%
2020s	38	76%	13%	3%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12…Qe7	75%	76%	▲ +1.1%
12…Nd7	17%	13%	▼ -3.4%
12…Qc7	5%	3%	▼ -2.5%
12…Nc6	3%	8%	▲ +5.2%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 10 parties
Tal, Mikhail — 3 parties
Karpov, Aleksandr — 2 parties
Smyslov, Vladimir — 2 parties
Kramnik, Vladimir — 1 partie
Anand, Viswanathan — 1 partie

Parties historiques

12…Qe7 — 66.2% (627 parties)

1968 — Ivkov, Borislav vs Korchnoi, Viktor — 0-1 — 18th Olympiad final A
1968 — Gheorghiu, Florin vs Korchnoi, Viktor — 0-1 — Palma de Majorca ESP
1970 — Ivkov, Borislav vs Polugaevsky, Lev — 1/2-1/2 — Palma de Mallorca izt
1970 — O'Kelly de Galway, Alberic vs Hecht, Hans-Joachim — 1/2-1/2 — Bad Pyrmont GER
1970 — Filip, Marius Liviu vs Korchnoi, Viktor — 0-1 — Siegen olm

12…Nd7 — 16.7% (158 parties)

1978 — Tukmakov, Vladimir B vs Makarichev, Sergey — 1-0 — Ashkhabad
1981 — Geller, Efim P. vs Makarichev, Sergey — 1/2-1/2 — Moscow RUS
1983 — Andersson, Ulf vs Karpov, Anatoly — 1/2-1/2 — cat. 15, It , Tilburg
1984 — Gligoric, Svetozar vs Beliavsky, Alexander G — 1/2-1/2 — Bugojno BIH
1984 — Andersson, Ulf vs Karpov, Anatoly — 1/2-1/2 — World - URS 37/90

12…Qc7 — 11.2% (106 parties)

1978 — Bagirov, Vladimir vs Balashov, Yuri — 1/2-1/2 — Lvov UKR
1979 — Bykhovsky, Avigdor vs Shakarov Alexander — 1/2-1/2 — Soviet Union
1979 — Petrosian, Tigran V. vs Karpov, Anatoly — 1/2-1/2 — Moscow RUS
1980 — Hort, Vlastimil vs Karpov, Anatoly — 1/2-1/2 — cat. 13, It , Buenos Aires
1980 — Miles, Anthony J vs Karpov, Anatoly — 1/2-1/2 — Valetta

12…Nc6 — 5.0% (47 parties)

1967 — Pachman, Ludek vs Gheorghiu, Florin — 1/2-1/2 — Moscow RUS
1977 — Tatai, Stefano vs Trabattoni, Franco — 1/2-1/2 — Rome Rome ITA
1977 — Polugaevsky, Lev vs Smyslov, Vladimir — 1/2-1/2 — Leningrad ch-URS
1978 — Adamski, Jan vs Inkiov, Ventzislav — 1/2-1/2 — Makarczyk op
1978 — Popov, Luben vs Inkiov, Ventzislav — 1/2-1/2 — Pernik

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