Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1), ● b5 (3v0), ● d5 (3v1)	● g4 (2v1)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v1)	● e5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Be2	● Be2 Actif (mob. 5)
Be3	● Be3 Actif (mob. 4)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	2 (● a1, ● h1)	2 (● 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	mobile
Ruptures	● c4-c5, ● e4-e5, ● f4-f5	● …d6-d5, ● …e7-e5

E79a — King’s Indian: Four Pawns Attack, Main Line

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.Nf3 cxd4 8.Nxd4 Nc6 9.Be3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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

Atouts. Les Blancs s'appuient sur une majorité de pions à l'aile dame (3 contre 2), un contrôle dominant de d4, b5 et d5, des fous actifs en e2 et e3 et la colonne semi-ouverte d.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours — 34 % des parties) ; Nxc6 (Menace d8 — 20 % des parties) ; Bxg4 (Fou actif (mobilité 8) — 16 % des parties) ; Nc2 (14 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plan principal. Attaque sur le roi adverse resté au centre.

Atouts. Les Noirs s'appuient sur un contrôle dominant de g4 et la colonne semi-ouverte c.

Côté adverse. Le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...Bd7 (Fou actif (mobilité 6), Développer c8 — 27 % des parties) ; ...Bg4 (Fou actif (mobilité 8), Développer c8 — 18 % des parties) ; ...Qb6 (14 % des parties) ; ...Ng4 (14 % des parties) ; ...Nxd4 (Cavalier centralisé en d4 — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1953 Zagreb – Round 14 – Fuderer, Andrija – 1-0 – Gligorić, Svetozar – G109 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. O-O Nxd4
1954 DDR Ch U20 – Round 15 – Moeckel, Klaus – 0-1 – Eising, Johannes – G69 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f4 d6 6. Be2 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. O-O Nc5
1955 Novi Sad – Round 1 – Bertok, Mario Jr. – 1-0 – Lukic, Arsenije – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. Qd2 Qa5
1955 Odessa – Round ? – Shianovsky, Vladislav I – 1/2-1/2 – Zagorovsky, Vladimir – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. Qd2 a6
1956 URS Ch, semi final – Round 1 – Koblencs, Alexander – 1/2-1/2 – Kotkov, Yuri – G11 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Qb6 10. Nc2 Qa5
1957 Sombor – Round 1 – Karaklajic, Nikola – 1/2-1/2 – Matulovic, M. – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Qb6 10. Nc2 Qa5
1958 BRA Ch – Round 4 – Ribeiro Sabino – 1/2-1/2 – Camara, Helder – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. O-O Kh8
1958 Munich ol (Men) qual-C – Round 4 – Dittmann, Sieghart – 1-0 – Sanchez Luis Augusto – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Qa5 10. O-O Bd7
1958 URS-JUG – Round 1 – Trifunovic, Petar – 1/2-1/2 – Boleslavsky, Isaac – G1 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1958 WchT U26 prel-A 05th – Round 1 – Bertholdt, Dieter – 1/2-1/2 – Gurgenidze, Bukhuti – G2 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. Qd2 a6
1958 YUG Ch 13th – Round 6 – Trifunovic, Petar – 1/2-1/2 – Vukcevich, Milan – G33 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Qb6 10. Nc2 Qa5
1960 Sao Paulo zt – Round 14 – Ascencio Flores, Rodrigo – 1/2-1/2 – De Freitas, Marcio Elisio – G72 1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. Nb3 b6
1961 BRA Ch – Round 6 – Ribeiro Sabino – 0-1 – Alves, Francisco H B Severino – G11 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Qb6 10. Nxc6 Qxe3
1962 Lasker Memorial Berlin-Ost – Round 3 – Fuchs, Reinhart – 1/2-1/2 – Raetsch, Heinz – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Be2 d6 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. O-O Nc5
1962 Sofia – Round 8 – Golz, Werner – 0-1 – Damjanovic, Marko – G46 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nc2 exf4
1962 Stockholm Interzonal – Round 12 – Bolbochan, J. – 1/2-1/2 – Bertok, Mario Jr. – G105 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. Qd2 Nc5
1962 Varna olm – Round 1 – Fuchs, Reinhart – 1-0 – Hoen, Ragnar Harald – G41 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. Qd2 Nxd4
1962 Varna olm – Round 1 – Pomar Salamanca, Arturo – 1-0 – Suer, Nevzat – G40 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1962 Varna olm – Round 1 – Uhlmann, Wolfgang – 1/2-1/2 – Fischer, Robert J – G26 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1962 Varna olm – Round 10 – Uhlmann, Wolfgang – 1/2-1/2 – Donner, Jan-Hein – G424 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Qb6 10. Nc2 Qa5
1962 Vrnjacka Banja – Round 3 – Karaklajic, Nikola – 1/2-1/2 – Nemet, Alen – G38 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1963 Fortaleza zt – Round 10 – Camara Ronald – 1-0 – Camara, Helder – G53 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1963 Halle zt – Round ? – Doda, Zbigniew – 1/2-1/2 – Pavlov, Mircea-Sergiu-Aurelian – G137 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nf6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1963 Piatigorsky Cup – Round 13 – Benko, Pal – 1-0 – Gligorić, Svetozar – G28 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1963 Piatigorsky Cup 1st – Round 11 – Panno, Oscar – 1/2-1/2 – Gligorić, Svetozar – G14 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. Be2 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1963 YUG Ch 19th – Round 12 – Krzisnik, Zvonko – 1/2-1/2 – Marovic, Drazen – G40 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1964 Capablanca Memorial – Round 1 – Stahlberg, Gideon – 1-0 – Cobo Arteaga, Eldis – G4 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 a6 10. h3 Nxd4
1964 DDR Ch 14. Magdeburg GER – Round 14 – Baumbach, Friedrich, Dr. – 1/2-1/2 – Golz, Werner – G9 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Qb6 10. Nc2 Qa5
1964 Tel Aviv olm – Round 1 – Garces, Napoleon – 1/2-1/2 – Naranja, Renato – G54 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Qb6 10. Nf5 Qxb2
1965 Titograd – Round 19 – Bertok, Mario Jr. – 1/2-1/2 – Ivkov, Borislav – G135 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 e5 10. Nxc6 bxc6
1966 Kecskemet Laszlo Toth Memorial – Round 8 – Padevsky, Nikola – 1/2-1/2 – Simagin, Vladimir – G28 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. Be2 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. O-O Nxd4
1967 Corr – Round 1 – Heemsoth, Hermann – 1-0 – Bigot, Lucie – G1 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nd7 10. O-O Qb6

E79a — Four Pawns Attack, Main Line (1953)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.Nf3 cxd4 8.Nxd4 Nc6 9.Be3

Les coups candidats

9…Bd7 — 26.9% (179 parties) →

Ambassadeurs : Martz, William (4x), Uhlmann, Wolfgang (3x), Brogden, John G (3x), Stahlberg, Gideon (2x), Abanin, Vladimir (2x), Nygård, Søren (2x), Uhoda, Philippe (2x), Fuchs, Reinhart (1x)

9…Bg4 — 17.6% (117 parties) →

Ambassadeurs : Uhlmann, Wolfgang (7x), Pomar Salamanca, Arturo (4x), Bertok, Mario Jr. (4x), Neikirkh, Oleg (3x), Penrose, Jonathan (3x), Stein, Leonid (3x), Malich, Burkhard, Dr. (3x), Baumgartner, Ulrich (3x)

9…Qb6 — 14.0% (93 parties)

Ambassadeurs : Baumgartner, Ulrich (5x), Uhlmann, Wolfgang (3x), Seitz, Benjamin (3x), Sogaard, Soren (2x), Steel, Anthony (2x), Koblencs, Alexander (1x), Kotkov, Yuri M (1x), Neikirkh, Oleg (1x)

9…Ng4 — 14.0% (93 parties) →

Ambassadeurs : Martz, William (5x), Uhlmann, Wolfgang (4x), Dozsa, Paul (2x), Bertok, Mario Jr. (2x), Visier Segovia, Fernando (2x), Taylor, Timothy (2x), Bryant, John Daniel (2x), Fischer, Robert J (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Bd7	9…Bg4	9…Qb6	9…Ng4
<1800	26	31%	8%	27%	4%
1800-2200	239	26%	14%	18%	15%
2200-2600	158	37%	16%	12%	13%

Évolution par décennie (% des parties)

Décennie	N parties	9…Bd7	9…Bg4	9…Qb6	9…Ng4
1950s	62	23%	16%	8%	23%
1960s	121	15%	33%	9%	12%
1970s	38	26%	18%	8%	21%
1980s	19	32%	21%	—	16%
1990s	96	35%	6%	11%	14%
2000s	129	37%	15%	13%	12%
2010s	182	26%	14%	25%	11%
2020s	18	11%	28%	6%	28%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Bd7	26%	11%	▼ -14.7%
9…Bg4	14%	28%	▲ +13.5%
9…Qb6	25%	6%	▼ -19.2%
9…Ng4	11%	28%	▲ +16.8%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 4 parties

Parties historiques

9…Bd7 — 26.9% (179 parties)

1953 — Wood, Baruch vs Winter, William — 1/2-1/2 — Bognor Regis
1955 — Dittmann, Sieghart vs Pedersen, Eigil — 1-0 — Berlin GER
1955 — Uhlmann, Wolfgang vs Elstner, Rudolf — 1-0 — Zwickau
1956 — Abanin, Vladimir vs Namsrai, D. — 1-0 — Ulaanbaatar MGL
1956 — Dittmann, Benno vs Beni, Alfred — 0-1 — DDR

9…Bg4 — 17.6% (117 parties)

1957 — Vistaneckis, Isakas vs Suetin, Alexey S — 1/2-1/2 — Ch URS (1/4 final), Minsk (Be
1958 — Bertholdt, Dieter vs Tal, Mikhail — 0-1 — Munchen olm
1958 — Uhlmann, Wolfgang vs Starck, Bodo — 1/2-1/2 — GDR-ch Schkopau GER
1958 — Keller-Hermann, Edith vs Golz, Werner — 1/2-1/2 — GDR-ch Schkopau GER
1958 — Orbaan, Constant vs Spanjaard, Eduard — 0-1 — Amsterdam NED

9…Qb6 — 14.0% (93 parties)

1954 — Ivkov, Borislav vs Udovcic, Mijo — 0-1 — YUG chT
1956 — Koblencs, Alexander vs Kotkov, Yuri M — 1/2-1/2 — Tbilisi GEO
1956 — Uhlmann, Wolfgang vs Vukovic, Sava — 1/2-1/2 — Krynica Krynica POL
1957 — Aadhitha Karikalan vs Matulovic, Milan — 1/2-1/2 — Sombor
1958 — Trifunovic, Petar vs Vukcevich, Milan — 1/2-1/2 — Sarajevo BIH

9…Ng4 — 14.0% (93 parties)

1955 — Malich, Burkhard, Dr. vs Dalhuisen, Tiemen — 1-0 — Zittau
1955 — Rabar, Braslav vs Talevski, Mihajlo — 1/2-1/2 — Novi Sad SRB
1955 — Fuderer, Andrija vs Gligoric, Sofija — 0-1 — Zagreb CRO
1956 — Uhlmann, Wolfgang vs Andersen, Borge — 1-0 — Dresden GER
1956 — Uhlmann, Wolfgang vs Ciocaltea, Victor — 1/2-1/2 — Dresden GER

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