E70v — King’s Indian: Accelerated Averbakh, 5…O-O 6.Qd2

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Bg5 O-O 6.Qd2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte f4, case forte b5, case forte d5, Bg5 actif, paire de fous.
Faiblesses adverses : Bg7 enfermé, Bc8 enfermé.
Problèmes : roi au centre, Bf1 enfermé, 4 pièces non développées (G1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Nf3 — Développer Ng1
● Bd3 — Développer Bf1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte g4, paire de fous.
Faiblesses adverses : Bf1 enfermé, roi blanc au centre.
Problèmes : Bg7 enfermé, Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Nbd7 — Développer Nb8
● ...Bf5 — Développer Bc8
● ...c6 — Rupture
● ...c5 — Rupture
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E70v — Accelerated Averbakh

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Bg5 O-O 6.Qd2

Eval: [+0.24]

Les coups candidats

6…c5 — 42.8% (504 parties)

Ambassadeurs : Nikolaidis, Ioannis NA (15x), Milov, Vadim (9x), Gasanov, Eldar (7x), Biebinger, Gerhard (5x), Cyborowski, Lukasz (5x), Golz, Werner (4x), Bisguier, Arthur B (4x), Munschi, Serge (4x)

6…Nbd7 — 17.7% (208 parties)

Ambassadeurs : Chilingirova, Pavlina (4x), Crouch, Colin S (3x), Ipatov, Alexander (3x), Pietzsch, Wolfgang (2x), Rashkovsky, Nukhim N (2x), Bousios, Hristos (2x), Aleksandrov Ivanchev, Aleksandar (2x), Tukhaev, Adam (2x)

6…Na6 — 11.7% (138 parties)

Ambassadeurs : Nikolaidis, Ioannis NA (8x), Crouch, Colin S (3x), Sokolov, Ivan (3x), Ibragimov, Ildar (3x), Roselli Mailhe, Bernardo (3x), Ruiz, Richard (2x), Bykhovsky, Anatoly A (2x), Ruf, Matthias (2x)

6…c6 — 9.4% (111 parties)

Ambassadeurs : Nijboer, Friso (2x), Letelier Martner, Rene (2x), Puelma Brieba, Roberto (2x), Biebinger, Gerhard (2x), Ermenkov, Evgenij (2x), Cruz, Raul C. (1x), De Las Heras, Juan Carlos (1x), O'Kelly de Galway, Alberic (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…c5	6…Nbd7	6…Na6	6…c6
<1800	27	30%	19%	4%	19%
1800-2200	300	39%	20%	8%	10%
2200-2600	595	45%	15%	16%	10%
2600+	24	54%	8%	29%	4%

Évolution par décennie (% des parties)

Décennie	N parties	6…c5	6…Nbd7	6…Na6	6…c6
1950s	19	79%	11%	—	—
1960s	55	58%	25%	2%	4%
1970s	10	30%	50%	—	20%
1980s	45	38%	27%	—	16%
1990s	261	35%	18%	11%	11%
2000s	419	42%	17%	13%	10%
2010s	329	45%	16%	15%	8%
2020s	40	50%	10%	10%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…c5	45%	50%	▲ +5.0%
6…Nbd7	16%	10%	▼ -5.5%
6…Na6	15%	10%	▼ -4.6%
6…c6	8%	5%	▼ -2.6%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 2 parties
Ju, Wenjun — 1 partie
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

6…c5 — 42.8% (504 parties)

1955 — Werchan, Hans, Dr. vs Barwich, Alfred — 1-0 — Zittau
1955 — Sandrin, Albert vs Kovacs, Zoltan his — 1-0 — Long Beach, CA USA
1955 — Reinhardt, Heinrich vs Idigoras, Gregorio — 1-0 — Buenos Aires ARG
1956 — Antoshin, Vladimir S vs Petrosian, Tigran A. — 1/2-1/2 — Tbilisi GEO
1956 — Mostafavee, M. vs Soos, Balint — 0-1 — Moskou olm

6…Nbd7 — 17.7% (208 parties)

1959 — Harmon, Clark vs Sholomson, Steven — 1-0 — Lancaster, CA
1959 — Golz, Werner vs Pietzsch, Wolfgang — 1/2-1/2 — Dresden GER
1960 — Pietzsch, Wolfgang vs Gligorić, Svetozar — 1-0 — Madrid ESP
1961 — Olafsson, Fridrik vs Niemela, Ilmari Aarne — 1/2-1/2 — Marianske Lazne
1961 — Baumbach, Friedrich, Dr. vs Berrehouma H — 1-0 — Helsinki FIN

6…Na6 — 11.7% (138 parties)

1964 — Alencastro, Mario vs Toth, Peter — 1-0 — Rio de Janeiro BRA
1990 — Ruf, Matthias vs Giertz, Niklaus — 1-0 — Bad Ragaz SUI
1992 — Markov, Jurij vs Sutovsky, Emil — 1/2-1/2 — Budapest HUN
1992 — Horvath, Csaba vs David, Alberto — 1-0 — Eurodata Budapest HUN
1993 — Ruf, Matthias vs Schmaltz, Roland — 0-1 — Gstaad

6…c6 — 9.4% (111 parties)

1960 — O'Kelly de Galway, Alberic vs Cherta, Pedro — 1-0 — Tarragona
1964 — Cruz, Raul C. vs De Las Heras, Juan Carlos — 1-0 — Buenos Aires ARG
1978 — Bank, Mordechai vs Malzman, Eliezer — 0-1 — Tel Aviv ISR
1979 — Pylvanainen, Veli vs Rintamaenpaa, R. — 1-0 — corr NS/III
1984 — Alliston Richard vs Thorsen, K — 1-0 — Plymouth ch-MI op

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● c7→d6, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● b5 (2v0), ● d5 (3v1)	● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0), ● d5 (3v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 2)
Bg5	● Bg5 Actif (mob. 5)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (g1, f1, a1, h1)	3 (b8, c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d4-d5, ● e4-e5, ● f2-f3	● …c7-c6, ● …c7-c5, ● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
19. Amber Blindfold 2010 – Round 11 – Grischuk, Alexander – 1-0 – Carlsen, Magnus – G33 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 Na6 7. Bd3 e5 8. d5 Qe8 9. Nge2 Nh5 10. f3 f5
1954 Prague zt – Round 19 – Szabo, Laszlo – 1-0 – Hodja, Bujan – G106 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 Re8 7. f4 c6 8. Nf3 Qa5 9. Be2 h6 10. Bh4 Bg4
1956 GDR Ch Leipzig GER – Round 6 – Golz, Werner – 1/2-1/2 – Liebert, Heinz – G14 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 e6 8. Bd3 Qa5 9. f4 exd5 10. cxd5 Re8
1957 Dallas – Round ? – Evans, Larry M – 1/2-1/2 – Gligoric, Svetozar – G45 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 e6 8. dxe6 Bxe6 9. Nf3 Nc6 10. Be2 Bg4
1957 New York ch-USA – Round 6 – Bisguier, Arthur B – 1-0 – Feuerstein, Arthur – G34 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 a6 8. f4 Qa5 9. Bd3 e6 10. Nge2 b5
1957 USA Ch Open 58th – Round 1 – Bisguier, Arthur B – 1-0 – Richardson, Dana – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. Nge2 cxd4 8. Nxd4 Nc6 9. Nc2 Be6 10. Be2 Na5
1958 Stevenson Memorial 6th – Round 1 – Wallis, Philip N – 1-0 – Clough, Fred – G1 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 Qa5 8. Nge2 Nbd7 9. Ng3 Nb6 10. Bd3 Na4
1959 Dresden – Round 1 – Golz, Werner – 1/2-1/2 – Pietzsch, Wolfgang – G7 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 Nbd7 7. Bd3 c5 8. d5 Ne5 9. f4 Nxd3+ 10. Qxd3 Qa5
1959 Riga – Round 1 – Mikenas, Vladas – 1-0 – Pietzsch, Wolfgang – G26 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 b5 8. cxb5 Qa5 9. Nf3 a6 10. bxa6 Nbd7
1960 Hamburg WGER-USSR – Round 6 – Hottes, Dieter – 0-1 – Geller, Efim P – G13 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 c5 7. d5 a6 8. Bd3 e5 9. Nge2 Nbd7 10. O-O Qe8
1960 Hastings6061 – Round 9 – Green, Arnold Yorvath – 1/2-1/2 – Barden, Leonard – G38 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bg5 O-O 5. e4 d6 6. Qd2 c5 7. d5 e6 8. Bd3 exd5 9. exd5 Nbd7 10. f4 h6
1960 It Bad Salzungen GER – Round 11 – Bertholdt, Dieter – 0-1 – Popov, Vladimir – G48 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 Qa5 8. Bd3 e5 9. dxe6 Bxe6 10. Nge2 Nc6
1960 Leipzig olm fin-A – Round 6 – Szabo, Ladislav – 0-1 – Fischer, Raphael – G104 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 c5 7. d5 e6 8. Bd3 exd5 9. Nxd5 Be6 10. Ne2 Bxd5
1960 Madrid zt – Round 4 – Pietzsch, Wolfgang – 1-0 – Gligorić, Svetozar – G30 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 Nbd7 7. Bd3 c5 8. d5 a6 9. Nf3 b5 10. cxb5 Nb6
1960 Nimzowitsch Memorial – Round ? – Golz, Werner – 0-1 – Geller, Efim P – G33 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 a6 8. a4 Qa5 9. Ra3 e6 10. Be2 exd5
1960 Tarragona – Round 1 – O'Kelly de Galway, Alberic – 1-0 – Cherta, Pedro – G2 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c6 7. f4 Qc7 8. Nf3 Bg4 9. Be2 Bxf3 10. Bxf3 e5
1961 Marianske Lazne zt – Round 7 – Olafsson, Fridrik – 1/2-1/2 – Niemela, Ilmari Aarne – G43 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Bg5 O-O 6. Qd2 Nbd7 7. Nge2 Re8 8. Ng3 c5 9. d5 a6 10. Be2 Nf8
1961 Soviet-ch28 – Round 11 – Petrosian, Tigran A. – 1-0 – Gufeld, Eduard – G16 1. c4 g6 2. d4 Bg7 3. Nc3 Nf6 4. e4 O-O 5. Bg5 d6 6. Qd2 c5 7. d5 Qa5 8. Bd3 a6 9. Nge2 e5 10. O-O Nbd7
1962 Corr Wch4 – Round 1 – Tolush, Alexander – 1-0 – Lim Hong Gie – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 c5 7. d5 Na6 8. Be2 Qa5 9. h4 Nc7 10. h5 a6
1962 Torremolinos zt – Round 1 – Szabo, Laszlo – 1-0 – Calvo José Minguez, Ricardo – G18 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 c5 7. d5 Qa5 8. Bd3 a6 9. Nge2 Re8 10. Ng3 Nbd7
1962 Varna olm – Round 2 – Olafsson, Fridrik – 1-0 – Kleopas, Georgios – G81 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 e6 8. Bd3 a6 9. Nge2 Qc7 10. O-O Ng4
1962 Varna olm – Round 4 – Estrada Degrandi, Walter – 1-0 – Kleopas, Georgios – G200 1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. Bg5 O-O 6. Qd2 c5 7. d5 Ne8 8. Bd3 Nd7 9. f4 Ndf6 10. h3 a6
1963 Copenhagen – Round 1 – Soby, Frode – 0-1 – Brinck-Claussen, Bjorn – G5 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 Nc6 7. Nge2 Re8 8. O-O-O a6 9. f4 b5 10. d5 Na5
1964 Buenos Aires Ch – Round ? – Cruz, Raul C. – 1-0 – De Las Heras, Juan Carlos – G26 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c6 7. f4 a6 8. Nf3 b5 9. e5 b4 10. Na4 Ne4
1964 EU Team Ch sf – Round 3.5 – Golz, Werner – 0-1 – Bobotsov, Milko G – G40 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 Qa5 8. Bd3 a6 9. Nge2 b5 10. O-O bxc4
1964 Malaga – Round 6 – Ulvestad, Olaf – 1/2-1/2 – Puig, Pedro – G26 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 c5 7. d5 b5 8. cxb5 a6 9. f3 axb5 10. Bxb5 Ba6
1964 UKR Ch – Round 4 – Lazarev, Efim M. – 0-1 – Dikarev, Igor – G22 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 Re8 7. O-O-O c6 8. Be2 a6 9. Bh6 Bh8 10. Nf3 b5
1964 WchT U26 11. fin-A – Round 6.3 – Kollberg, Lothar – 1/2-1/2 – Savon, Vladimir A – G104 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 Qa5 8. Bd3 e6 9. dxe6 Bxe6 10. Nge2 Nc6
1966 La Habana olm prel – Round 6 – Medina-Garcia, Antonio – 1-0 – De Castro, Edgar – G95 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 Re8 8. Bd3 e6 9. Nge2 Qa5 10. dxe6 fxe6
1967 ROM Ch – Round 9 – Vaisman, Volodia – 1-0 – Demian, Valer-Vasile – G60 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 Nbd7 7. Nge2 c5 8. d5 b5 9. cxb5 a6 10. Ng3 axb5
1968 Cardenas/Matanzas/Santa Clara – Round 12 – Ader Hausman, Walter – 1-0 – Cobo Arteaga, Eldis – G57 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Bg5 O-O 6. Qd2 c5 7. d5 e6 8. Nge2 Qa5 9. Ng3 exd5 10. cxd5 Re8
1968 Lugano ol (Men) – Round ? – Huebner, Robert – 1-0 – Hardt, Adam – G80 1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. Bg5 O-O 6. Qd2 Nbd7 7. Nge2 a6 8. Ng3 c6 9. Bh6 b5 10. h4 e5
1968 Olympiad Lugano SUI – Round 1 – De Castro, Edgar – 1/2-1/2 – Bednarski, Jacek – G1 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nf6 5. Bg5 O-O 6. Qd2 Nbd7 7. f4 h6 8. Bh4 e5 9. dxe5 dxe5 10. O-O-O exf4
1969 Olot – Round 1 – Ulvestad, Olaf – 0-1 – Toran Albero, Roman – G6 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 c5 7. d5 e6 8. Bd3 exd5 9. exd5 Nbd7 10. f4 h6
Amber Rapid 2007 – Round 10 – Gelfand, Boris – 1/2-1/2 – Ivanchuk, Vasyl – G35 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. Qd2 c5 7. d5 b5 8. cxb5 a6 9. a4 Qa5 10. Ra3 Nbd7
Amber Rapidplay 2000 – Round 8 – Kramnik, Vladimir – 1-0 – Ljubojevic, Ljubomir – G40 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 O-O 6. Qd2 c5 7. d5 e6 8. Bd3 Re8 9. Nge2 exd5 10. exd5 Nbd7
World Blitz 2018 – Round 9.26 – Vallejo Pons, Francisco – 0-1 – Golubov, Saveliy – G528 1. d4 Nf6 2. c4 g6 3. Bg5 Bg7 4. Nc3 O-O 5. e4 d6 6. Qd2 Na6 7. f3 Qe8 8. g4 e5 9. d5 Nd7 10. Nge2 f6
World Blitz Final 2012 – Round 14 – Morozevich, Alexander – 1/2-1/2 – Topalov, Veselin – G105 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bg5 O-O 5. e4 d6 6. Qd2 c5 7. d5 e6 8. Bd3 exd5 9. cxd5 Re8 10. Nge2 Nbd7

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